Removed tripling of workspace API when POSIX API is enabled. confdefs.h

is now correct enough where this is not necessary.  This was in to
cover up the deficiencies in figuring out how much memory a GNAT/RTEMS
application required.  There is a good stab at this now.

c/src/lib/libbsp/powerpc/psim/startup/bspstart.c

@@ -210,11 +210,13 @@ void bsp_start( void )
 
   Cpu_table.exceptions_in_RAM = TRUE;
 
+/*
 #if defined(RTEMS_POSIX_API)
   BSP_Configuration.work_space_size *= 3;
 #endif
+*/
 
-  BSP_Configuration.work_space_size += 32 * 1024;
+  BSP_Configuration.work_space_size += 1024;
 
 #if 0
   work_space_start = 

c/src/lib/libbsp/sparc/erc32/startup/bspstart.c

@@ -213,9 +213,11 @@ void bsp_start( void )
 
   Cpu_table.interrupt_stack_size = (24 * 1024);
 
+/*
 #if defined(RTEMS_POSIX_API)
   BSP_Configuration.work_space_size *= 3;
 #endif
+*/
 
   work_space_start = 
     (unsigned char *)rdb_start - BSP_Configuration.work_space_size;