* v850-tdep.c: Fix comment for v850_scan_prologue. Remove extra
frame info. Use frame_info's saved_regs instead of matching member
in extra_frame_info throughout.
(v850_frame_init_saved_regs): New function.
(v850_init_extra_frame_info): Move most functionality into
v850_frame_init_saved_regs().
* config/v850/tm-v850.h (EXTRA_FRAME_INFO): Remove definition.
(v850_frame_find_saved_regs): Remove declaration.
(FRAME_FIND_SAVED_REGS): Remove definition.
(v850_frame_init_saved_regs): Add declaration.
(FRAME_INIT_SAVED_REGS): Add definition.