re PR testsuite/38864 (Fixed-point tests under gcc.target/mips are missing the fixed_point target check)

	PR testsuite/38864
	* gcc.target/mips/fixed-vector-type.c: Add { target { fixed_point} }
	to dg-do compile.
	* gcc.target/mips/fixed-scalar-type.c: Likewise.
	* gcc.target/mips/dpaq_sa_l_w.c: Likewise.
	* gcc.target/mips/dpsq_sa_l_w.c: Likewise.

From-SVN: r143694