Remove make preinstall

A speciality of the RTEMS build system was the make preinstall step.  It
copied header files from arbitrary locations into the build tree.  The
header files were included via the -Bsome/build/tree/path GCC command
line option.

This has at least seven problems:

* The make preinstall step itself needs time and disk space.

* Errors in header files show up in the build tree copy.  This makes it
  hard for editors to open the right file to fix the error.

* There is no clear relationship between source and build tree header
  files.  This makes an audit of the build process difficult.

* The visibility of all header files in the build tree makes it
  difficult to enforce API barriers.  For example it is discouraged to
  use BSP-specifics in the cpukit.

* An introduction of a new build system is difficult.

* Include paths specified by the -B option are system headers.  This
  may suppress warnings.

* The parallel build had sporadic failures on some hosts.

This patch removes the make preinstall step.   All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc.  Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.

The new cpukit include directories are:

* cpukit/include

* cpukit/score/cpu/@RTEMS_CPU@/include

* cpukit/libnetworking

The new BSP include directories are:

* bsps/include

* bsps/@RTEMS_CPU@/include

* bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include

There are build tree include directories for generated files.

The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.

The "bootstrap -p" option was removed.  The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.

Update #3254.

bsps/sh/shsim/include/bsp.h

@@ -0,0 +1,65 @@
+/*
+ *  SH-gdb simulator BSP
+ *
+ *  This include file contains all board IO definitions.
+ */
+
+/*
+ *  Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de)
+ *
+ *  COPYRIGHT (c) 2001, Ralf Corsepius, Ulm, Germany
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ *  COPYRIGHT (c) 2001.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef LIBBSP_SH_SHSIM_BSP_H
+#define LIBBSP_SH_SHSIM_BSP_H
+
+#ifndef ASM
+
+#include <rtems.h>
+
+#include <bspopts.h>
+#include <bsp/default-initial-extension.h>
+
+/*
+ * FIXME: One of these would be enough.
+ */
+#include <rtems/devnull.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Constants */
+
+void *clock_driver_sim_idle_body(uintptr_t);
+#define BSP_IDLE_TASK_BODY clock_driver_sim_idle_body
+
+/*
+ * Defined in the linker script 'linkcmds'
+ */
+extern void *CPU_Interrupt_stack_low;
+extern void *CPU_Interrupt_stack_high;
+
+/*
+ * BSP methods that cross file boundaries.
+ */
+int _sys_exit (int n);
+void bsp_hw_init(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !ASM */
+#endif

bsps/sh/shsim/include/bsp/syscall.h

@@ -0,0 +1,32 @@
+#define	SYS_exit	1
+#define	SYS_fork	2
+
+#define	SYS_read	3
+#define	SYS_write	4
+#define	SYS_open	5
+#define	SYS_close	6
+#define	SYS_wait4	7
+#define	SYS_creat	8
+#define	SYS_link	9
+#define	SYS_unlink	10
+#define	SYS_execv	11
+#define	SYS_chdir	12
+#define	SYS_mknod	14
+#define	SYS_chmod	15
+#define	SYS_chown	16
+#define	SYS_lseek	19
+#define	SYS_getpid	20
+#define SYS_isatty      21
+#define SYS_fstat       22
+#define SYS_time 	23
+
+#define SYS_ARG		24
+#define	SYS_stat	38
+
+#define	SYS_pipe	42
+#define	SYS_execve	59
+
+#define SYS_utime       201 /* not really a system call */
+#define SYS_wait        202 /* nor is this */
+
+int __trap34(int, int, void*, int );

bsps/sh/shsim/include/tm27.h

@@ -0,0 +1 @@
+#include <rtems/tm27-default.h>