Darwin, X86, testsuite: Fix pr87767 tests for Darwin.

Darwin, X86, testsuite: Fix pr87767 tests for Darwin.

The tests assume non-PIC for m32 (which means that they fail on default
PIC targets, like Darwin).  There is also a missing space before the
closing '}' on one of the dg-require-effective-target which means that
test fails on machines without avx512f.

gcc/testsuite/ChangeLog:

	* gcc.target/i386/avx512f-broadcast-pr87767-1.c: Make the test
	run as non-dynamic for m32 Darwin.
	* gcc.target/i386/avx512f-broadcast-pr87767-3.c: Likewise.
	* gcc.target/i386/avx512f-broadcast-pr87767-5.c: Likewise.
	* gcc.target/i386/avx512f-broadcast-pr87767-7.c: Likewise.
	* gcc.target/i386/avx512vl-broadcast-pr87767-1.c: Likewise.
	* gcc.target/i386/avx512vl-broadcast-pr87767-3.c: Likewise.
	* gcc.target/i386/avx512vl-broadcast-pr87767-5.c: Likewise.
	* gcc.target/i386/avx512f-broadcast-pr87767-6.c: Adjust dg-requires
	clause.