libgcc: Fix incorrect use of USE_TM_CLONE_REGISTRY

2019-11-04  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* crtstuff.c: Define USE_TM_CLONE_REGISTRY to 0 if it's undefined and
	the target output object format is not ELF.
	s/defined(USE_TM_CLONE_REGISTRY)/USE_TM_CLONE_REGISTRY.

From-SVN: r277775