Add vqdmul* neon instructions

[SparrowLii]

This PR does the following:

1. Add vqdmull, vqdmlal, vqdmlsl, vqdmulh neon instructions.
2. Correct the links of vqadd and vqsub to be consistent with Clang.

[rust-highfive]

r? @Amanieu

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[SparrowLii]

There seems to be bugs in the llvm.aarch64.neon.*.i32 (.i64) link types, so I currently canceled the adding of the instructions using primitive parameters

[Amanieu]

What is the bug? Does the same issue happen in Clang?

[SparrowLii]

Look this CI fail in #1127 , llvm.aarch64.neon.srshl.i64 (the implement of vrshld_s64 in Clang) went to error LLVM ERROR: Cannot select: 0x7f88213835b0: i64 = AArch64ISD::VSHL Constant:i64<1>, Constant:i32<2> under the target aarch64-linux-android. But it did not fail on other aarch64 targets. I don't know the reason for it.

[SparrowLii]

So I now avoid using primitive type suffixes in linking (for example, using .v1i64 instead of .i64), but this will cause the compiler to not be able to optimize it into the instructions we want.

[Amanieu]

I can reproduce the crash in Clang (godbolt), I will open a bug on LLVM.

[Amanieu]

https://bugs.llvm.org/show_bug.cgi?id=50057

[Amanieu]

We can add back the missing intrinsics once the LLVM bug is fixed.