common: Move reset_misc() function to arch header

This function is only used on ARM devices. Move it out of the common file
and to a arch-specific header.

Signed-off-by: Simon Glass <sjg@chromium.org>

include/common.h

@@ -74,7 +74,6 @@ phys_size_t get_effective_memsize(void);
 int testdram(void);
 #endif /* CONFIG_SYS_DRAM_TEST */
 
-void	reset_misc    (void);
 void	reset_cpu     (ulong addr);
 
 /* lib/uuid.c */