network: Use kernel/user space header files

Add and use <machine/rtems-bsd-kernel-space.h> and
<machine/rtems-bsd-user-space.h> similar to the libbsd to avoid command
line defines and defines scattered throught the code base.

Simplify cpukit/libnetworking/Makefile.am.

Update #3375.

bsps/sparc/erc32/net/erc32sonic.c

@@ -20,7 +20,7 @@
  *  http://www.rtems.org/license/LICENSE.
  */
 
-#define __INSIDE_RTEMS_BSD_TCPIP_STACK__
+#include <machine/rtems-bsd-kernel-space.h>
 
 #include <bsp.h>
 #include <libchip/sonic.h>

bsps/sparc/leon2/net/leon_open_eth.c

@@ -13,7 +13,7 @@
  * http://www.rtems.org/license/LICENSE.
  */
 
-#define __INSIDE_RTEMS_BSD_TCPIP_STACK__
+#include <machine/rtems-bsd-kernel-space.h>
 
 #include <bsp.h>
 #include <libchip/open_eth.h>

bsps/sparc/leon2/net/leon_smc91111.c

@@ -13,7 +13,7 @@
  * http://www.rtems.org/license/LICENSE.
  */
 
-#define __INSIDE_RTEMS_BSD_TCPIP_STACK__
+#include <machine/rtems-bsd-kernel-space.h>
 
 #include <rtems.h>
 

bsps/sparc/leon3/net/leon_greth.c

@@ -9,7 +9,7 @@
  *  http://www.rtems.org/license/LICENSE.
  */
 
-#define __INSIDE_RTEMS_BSD_TCPIP_STACK__
+#include <machine/rtems-bsd-kernel-space.h>
 
 #include <bsp.h>
 #include <libchip/greth.h>

bsps/sparc/leon3/net/leon_open_eth.c

@@ -13,7 +13,7 @@
  * http://www.rtems.org/license/LICENSE.
  */
 
-#define __INSIDE_RTEMS_BSD_TCPIP_STACK__
+#include <machine/rtems-bsd-kernel-space.h>
 
 #include <bsp.h>
 #include <libchip/open_eth.h>

bsps/sparc/leon3/net/leon_smc91111.c

@@ -13,7 +13,7 @@
  * http://www.rtems.org/license/LICENSE.
  */
 
-#define __INSIDE_RTEMS_BSD_TCPIP_STACK__
+#include <machine/rtems-bsd-kernel-space.h>
 
 #include <bsp.h>
 #include <libchip/smc91111exp.h>

bsps/sparc/shared/net/greth.c

@@ -12,10 +12,9 @@
  *  2007-09-07, Ported GBIT support from 4.6.5
  */
 
-#define __INSIDE_RTEMS_BSD_TCPIP_STACK__
+#include <machine/rtems-bsd-kernel-space.h>
 
 #include <rtems.h>
-#define _KERNEL
 #define CPU_U32_FIX
 #include <bsp.h>