rm48x50: fix the prototype of finsh_system_init
rm48x50: cleanup HALCoGen code
rm48x50: add GCC support
rm48: move some asm file to libcpu
rm48x50: cleanup sys_startup.c
cortex-r4: remove RM48x50.h and add armv7.h
cortex-r4: dump register on traps

We could not handle any traps except IRQ/FIQ.
Merge pull request #181 from grissiom/rm48x50-next

Rm48x50 next