arm: avoid 2 compiler warnings

Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc/sysdeps/linux/arm/aeabi_assert.c

@@ -21,7 +21,7 @@
 #include <stdlib.h>
 
 
-void __aeabi_assert(const char *assertion, const char *file, unsigned int line);
+void __aeabi_assert(const char *assertion, const char *file, unsigned int line) attribute_noreturn;
 void __aeabi_assert(const char *assertion, const char *file, unsigned int line)
 {
   __assert (assertion, file, line, NULL);

libc/sysdeps/linux/arm/aeabi_mb_cur_max.c

@@ -20,8 +20,8 @@
 #include <locale.h>
 #include <stdlib.h>
 
-int
-__aeabi_MB_CUR_MAX (void)
+int __aeabi_MB_CUR_MAX (void);
+int __aeabi_MB_CUR_MAX (void)
 {
   return MB_CUR_MAX;
 }