Move setjmp to lib and add setjmp for sh (imported from newlib) and compile it as separate library.

It's used by both, plugins and codecs, and sh/hwcodec doesn't compile codecs
so it doesn't fit into sources.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27869 a1c6a512-1295-4272-9138-f99709370657

apps/plugins/lib/SOURCES

@@ -75,19 +75,3 @@ pluginlib_albumart.c
 #ifdef HAVE_TOUCHSCREEN
 pluginlib_touchscreen.c
 #endif
-
-#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
-
-#ifdef CPU_ARM
-../../codecs/lib/setjmp_arm.S
-#endif
-
-#ifdef CPU_COLDFIRE
-../../codecs/lib/setjmp_cf.S
-#endif
-
-#ifdef CPU_MIPS
-../../codecs/lib/setjmp_mips.S
-#endif
-
-#endif /* PLATFORM_NATIVE */

apps/plugins/lib/pluginlib_exit.h

@@ -23,11 +23,7 @@
 #define __PLUGINLIB_EXIT_H__
 
 #include "config.h"
-#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
-#include "../../codecs/lib/setjmp.h"
-#else
 #include <setjmp.h>
-#endif
 
 #define _PLUGINLIB_EXIT_INIT(atexit) switch(setjmp(__exit_env))   \
                                      {                            \