splet.h (SUBTARGET_SWITCHES): Recognize -m{big,little}-endian.

	* sparc/splet.h (SUBTARGET_SWITCHES): Recognize -m{big,little}-endian.
	({CPP,ASM,LINK}_SPEC): Add little endian support.
	({BYTES,WORDS}_BIG_ENDIAN): Likewise.
	* sparc/t-splet (MULTILIB_{OPTIONS,DIRNAMES}): Likewise.

From-SVN: r12663

gcc/config/sparc/t-splet

@@ -16,8 +16,8 @@ fp-bit.c: $(srcdir)/config/fp-bit.c
 	echo '#define FLOAT' > fp-bit.c
 	cat $(srcdir)/config/fp-bit.c >> fp-bit.c
 
-MULTILIB_OPTIONS = mlive-g0 mbroken-saverestore
-MULTILIB_DIRNAMES = live-g0 brknsave
+MULTILIB_OPTIONS = mlittle-endian mlive-g0 mbroken-saverestore
+MULTILIB_DIRNAMES = little live-g0 brknsave
 
 LIBGCC = stmp-multilib
 INSTALL_LIBGCC = install-multilib