gcc: PR target/54663

gcc:  PR target/54663
	* config.gcc (microblaze*-linux*): Add tmake_file to allow building
	of microblaze-c.o.
libgcc:
	* config.host(microblaze*-linux*): tmake_file: Remove
	t-slibgcc-nolc-override, add t-slibgcc-libgcc.
	* config/microblaze/t-microblaze: Set LIB2FUNCS_EXCLUDE
	to exclude functions from being built with libgcc.c and use
	the microblaze assembly.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@195488 138bc75d-0d04-0410-961f-82ee72b054a4