[AArch64,testsuite] Fix epilogue scan after ifcombine update.

[AArch64,testsuite] Fix epilogue scan after ifcombine update.

2017-02-07  Christophe Lyon  <christophe.lyon@linaro.org>

	* gcc.target/aarch64/test_frame_1.c: Scan epilogue with
	scan-assembler instead of scan-assembler-times.
	* gcc.target/aarch64/test_frame_10.c: Likewise.
	* gcc.target/aarch64/test_frame_12.c: Likewise.
	* gcc.target/aarch64/test_frame_2.c: Likewise.
	* gcc.target/aarch64/test_frame_4.c: Likewise.
	* gcc.target/aarch64/test_frame_6.c: Likewise.
	* gcc.target/aarch64/test_frame_7.c: Likewise.
	* gcc.target/aarch64/test_frame_8.c: Likewise.

From-SVN: r245242