GDBARCH_BREAKPOINT_MANIPULATION and SET_GDBARCH_BREAKPOINT_MANIPULATION

GDBARCH_BREAKPOINT_MANIPULATION and SET_GDBARCH_BREAKPOINT_MANIPULATION

Many archs have only one kind of breakpoint, so their breakpoint_from_pc
implementations are quite similar.  This patch uses macro
GDBARCH_BREAKPOINT_MANIPULATION and SET_GDBARCH_BREAKPOINT_MANIPULATION
for breakpoint_from_pc, so that we can easily switch from
breakpoint_from_pc to breakpoint_kind_from_pc and sw_breakpoint_from_kind
later.

gdb:

2016-11-03  Yao Qi  <yao.qi@linaro.org>

	* arch-utils.h (GDBARCH_BREAKPOINT_MANIPULATION): New macro.
	(SET_GDBARCH_BREAKPOINT_MANIPULATION): New macro.
	aarch64-tdep.c (aarch64_breakpoint_from_pc): Remove.  Use
	GDBARCH_BREAKPOINT_MANIPULATION.
	(aarch64_gdbarch_init): Replace set_gdbarch_breakpoint_from_pc
	with SET_GDBARCH_BREAKPOINT_MANIPULATION.
	* alpha-tdep.c: Likewise.
	* avr-tdep.c: Likewise.
	* frv-tdep.c: Likewise.
	* ft32-tdep.c: Likewise.
	* h8300-tdep.c: Likewise.
	* hppa-tdep.c: Likewise.
	* i386-tdep.c: Likewise.
	* lm32-tdep.c: Likewise.
	* m32c-tdep.c: Likewise.
	* m68hc11-tdep.c: Likewise.
	* m68k-tdep.c: Likewise.
	* m88k-tdep.c: Likewise.
	* mep-tdep.c: Likewise.
	* microblaze-tdep.c: Likewise.
	* mn10300-tdep.c: Likewise.
	* moxie-tdep.c: Likewise.
	* msp430-tdep.c: Likewise.
	* rl78-tdep.c: Likewise.
	* rx-tdep.c: Likewise.
	* s390-linux-tdep.c: Likewise.
	* sparc-tdep.c: Likewise.
	* spu-tdep.c: Likewise.
	* tilegx-tdep.c: Likewise.
	* vax-tdep.c: Likewise.
	* xstormy16-tdep.c: Likewise.