* sky testsuite fixes

* sky testsuite fixes
Tue Jun 16 09:03:37 1998  Frank Ch. Eigler  <fche@cygnus.com>
	* t-cop2.s: Reorder instruction blocks to prevent "Out of bounds"
	messages during test execution.  Added dummy branch labels for BC2*
 	instructions.
	* t-cop2.brn: Use --sky-debug option instead of env var.
	* t-cop2.vuexpect: Updated for with new disassembly format.
	* sky_sce_fast.exp: Don't compare GIF outputs for
 	--float-type=fast.
	* sce_test{17,33,49}.dvpasm: Use ".DmaPackVif 1" option to
	exercise assembler / PKE.
	* rw-vureg.c: Cast memcpy operand to allay warning.