Adding tests and fixing codegen for the Arm 'Aes' and 'ArmBase' hwintrinsics (dotnet...

Adding tests and fixing codegen for the Arm 'Aes' and 'ArmBase' hwintrinsics (dotnet/coreclr#27151)

* Adding arm hwintrinsic tests for AdvSimd.LoadVector64 and AdvSimd.LoadVector128

* Adding arm hwintrinsic tests for Aes.Decrypt, Aes.Encrypt, Aes.InverseMixColumns, and Aes.MixColumns

* Fixing compSetProcessor to support the Arm AES instruction set

* Adding arm hwintrinsic tests for ArmBase.LeadingZeroCount, ArmBase.Arm64.LeadingSignCount, and ArmBase.Arm64.LeadingZeroCount

* Improving the arm hwintrinsic test generator

* Regenerating the arm hwintrinsic tests

* Fixing the arm hwintrinsic codegen to support scalar and aes intrinsics

* Applying formatting patch.

* Don't pass in opts to INS_mov

* Ensure the arm Aes.Decrypt and Aes.Encrypt intrinsics set tgtPrefUse for op1 and mark op2 as delay free

Commit migrated from https://github.com/dotnet/coreclr/commit/643fda7fc7809f22e8cba4341f6e4c8a2507b6c6