arm: improve tests for vabdq*

gcc/testsuite/ChangeLog:

	* gcc.target/arm/mve/intrinsics/vabdq_f16.c: Improve test.
	* gcc.target/arm/mve/intrinsics/vabdq_f32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_m_f16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_m_f32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_m_s16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_m_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_m_s8.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_m_u16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_m_u32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_m_u8.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_s16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_s8.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_u16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_u32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_u8.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_x_f16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_x_f32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_x_s16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_x_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_x_s8.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_x_u16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_x_u32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vabdq_x_u8.c: Likewise.
24 files changed