[AArch64] Implement some vmul*_lane*_f* intrinsics in arm_neon.h.
* config/aarch64/arm_neon.h (vmul_f64): New intrinsic.
(vmuld_laneq_f64): Likewise.
(vmuls_laneq_f32): Likewise.
(vmul_n_f64): Likewise.
(vmuld_lane_f64): Reimplement in C.
(vmuls_lane_f32): Likewise.
* gcc.target/aarch64/simd/vmul_f64_1.c: New test.
* gcc.target/aarch64/simd/vmul_n_f64_1.c: Likewise.
* gcc.target/aarch64/simd/vmuld_lane_f64_1.c: Likewise.
* gcc.target/aarch64/simd/vmuld_laneq_f64_1.c: Likewise.
* gcc.target/aarch64/simd/vmuls_lane_f32_1.c: Likewise.
* gcc.target/aarch64/simd/vmuls_laneq_f32_1.c: Likewise.
From-SVN: r213634