arm: improve tests for vqdmlahq_m*

gcc/testsuite/ChangeLog:

	* gcc.target/arm/mve/intrinsics/vqdmlahq_m_n_s16.c: Improve test.
	* gcc.target/arm/mve/intrinsics/vqdmlahq_m_n_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vqdmlahq_m_n_s8.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vqdmlahq_n_s16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vqdmlahq_n_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vqdmlahq_n_s8.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vqdmlashq_m_n_s16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vqdmlashq_m_n_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vqdmlashq_m_n_s8.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vqdmlashq_n_s16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vqdmlashq_n_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vqdmlashq_n_s8.c: Likewise.
12 files changed