[Clang][AArch64][SME] Add vector read/write (mova) intrinsics

[Clang][AArch64][SME] Add vector read/write (mova) intrinsics

This patch adds support for the following SME ACLE intrinsics (as defined
in https://arm-software.github.io/acle/main/acle.html):

  - svread_hor_za8[_s8]_m    // also for u8
  - svread_hor_za16[_s16]_m  // also for u16, f16, bf16
  - svread_hor_za32[_s32]_m  // also for u32, f32
  - svread_hor_za64[_s64]_m  // also for u64, f64
  - svread_hor_za128[_s8]_m  // also for s16, s32, s64, u8, u16, u32, u64, bf16, f16, f32, f64
  - svread_ver_za8[_s8]_m    // also for u8
  - svread_ver_za16[_s16]_m  // also for u16, f16, bf16
  - svread_ver_za32[_s32]_m  // also for u32, f32
  - svread_ver_za64[_s64]_m  // also for u64, f64
  - svread_ver_za128[_s8]_m  // also for s16, s32, s64, u8, u16, u32, u64, bf16, f16, f32, f64
  - svwrite_hor_za8[_s8]_m   // also for u8
  - svwrite_hor_za16[_s16]_m // also for u16, f16, bf16
  - svwrite_hor_za32[_s32]_m // also for u32, f32
  - svwrite_hor_za64[_s64]_m // also for u64, f64
  - svwrite_hor_za128[_s8]_m // also for s16, s32, s64, u8, u16, u32, u64, bf16, f16, f32, f64
  - svwrite_ver_za8[_s8]_m   // also for u8
  - svwrite_ver_za16[_s16]_m // also for u16, f16, bf16
  - svwrite_ver_za32[_s32]_m // also for u32, f32
  - svwrite_ver_za64[_s64]_m // also for u64, f64
  - svwrite_ver_za128[_s8]_m // also for s16, s32, s64, u8, u16, u32, u64, bf16, f16, f32, f64

Co-authored-by: Sagar Kulkarni <sagar.kulkarni1@huawei.com>
Reviewed By: sdesmalen, kmclaughlin

Differential Revision: https://reviews.llvm.org/D128648