[binutils-gdb] Share some ARM target dependent code from GDB with GDBServer

[sergiodj+buildbot at redhat dot com]

*** TEST RESULTS FOR COMMIT cba7e83fda349cbf423fab274f5b8677d8148947 ***

Author: Antoine Tremblay <antoine.tremblay@ericsson.com>
Branch: master
Commit: cba7e83fda349cbf423fab274f5b8677d8148947

Share some ARM target dependent code from GDB with GDBServer

This patch is in preparation for software single stepping support on ARM
it shares some functions and definitions that will be needed.

No regressions, tested on ubuntu 14.04 ARMv7 and x86.
With gdbserver-{native,extended} / { -marm -mthumb }

Not tested: wince/bsd build.

gdb/ChangeLog:

	* arch/arm.c (bitcount): Move from arm-tdep.c.
	(condition_true): Likewise.
	* arch/arm.h (Instruction Definitions): Move form arm-tdep.h.
	(condition_true): Move defenition from arm-tdep.h.
	(bitcount): Likewise.
	* arm-tdep.c (condition_true): Move to arch/arm.c.
	(bitcount): Likewise.
	* arm-tdep.h (Instruction Definitions): Move to arch/arm.h.
	* arm-wince-tdep.c: Include arch/arm.h.
	* armnbsd-tdep.c: Likewise.