sysv4.h (ENDIAN_SELECT): Define, extracted from

	* config/rs6000/sysv4.h (ENDIAN_SELECT): Define, extracted from
	(ASM_SPEC): ..here.  Emit DEFAULT_ASM_ENDIAN too.
	(DEFAULT_ASM_ENDIAN): Define.
	(CC1_SPEC, LINK_TARGET_SPEC): Use ENDIAN_SELECT.
	* config/rs6000/linux64.h (ASM_SPEC32): Remove endian options.
	Update -K PIC clause from sysv4.h.
	(ASM_SPEC_COMMON): Use ENDIAN_SELECT.
	(LINK_OS_LINUX_EMUL32, LINK_OS_LINUX_EMUL64): Likewise.

From-SVN: r198619