Like the pr88850.c test, also fix the pr88850-2.c testcase which
was failing in hardfp environments.

Committed as obvious.

    gcc/testsuite/
	* gcc.target/arm/pr88850-2.c: Block -mfloat-abi override.
	* gcc.target/arm/pr88850.c: Use -mfloat-abi=softfp.

From-SVN: r269072