testsuite: arm: Use check-function-bodies in cmse-5 tests

Converted the tests to use check-function-bodies in order to ensure that
the sequence is correct.
This also allows both APSR_nzcvq and APSR_nzcvqg as target selector does
not work when the -march and/or -mcpu overrides the target to test.

gcc/testsuite/ChangeLog:

	* gcc.target/arm/cmse/mainline/8m/hard-sp/cmse-5.c: Use
	check-function-bodies.
	* gcc.target/arm/cmse/mainline/8m/hard/cmse-5.c: Likewise.
	* gcc.target/arm/cmse/mainline/8m/soft/cmse-5.c: Likewise.
	* gcc.target/arm/cmse/mainline/8m/softfp-sp/cmse-5.c: Likewise.
	* gcc.target/arm/cmse/mainline/8m/softfp/cmse-5.c: Likewise.
	* gcc.target/arm/cmse/mainline/8_1m/hard-sp/cmse-5.c: Likewise.
	* gcc.target/arm/cmse/mainline/8_1m/hard/cmse-5.c: Likewise.
	* gcc.target/arm/cmse/mainline/8_1m/soft/cmse-5.c: Likewise.
	* gcc.target/arm/cmse/mainline/8_1m/softfp-sp/cmse-5.c:
	Likewise.
	* gcc.target/arm/cmse/mainline/8_1m/softfp/cmse-5.c: Likewise.

Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>