[PATCH 1/7][Binutils] aarch64: Enable mandatory feature bits for v9.4-A.

[srinath]

Hi,

This patch fixes the mandatory feature bits in v9.4-a architectures,
by enabling FEAT_SVE2p1 for Armv9.4-A architecture by default.

Regression testing for aarch64-none-elf target and found no regressions.

Ok for binutils master?

Regards,
Srinath.
---
 gas/testsuite/gas/aarch64/sve2p1-1-bad.d  | 2 +-
 gas/testsuite/gas/aarch64/sve2p1-1.d      | 2 +-
 gas/testsuite/gas/aarch64/sve2p1-2-bad.d  | 4 ++++
 gas/testsuite/gas/aarch64/sve2p1-2-bad.l  | 2 ++
 gas/testsuite/gas/aarch64/sve2p1-nosve2.s | 1 +
 include/opcode/aarch64.h                  | 3 ++-
 6 files changed, 11 insertions(+), 3 deletions(-)
 create mode 100644 gas/testsuite/gas/aarch64/sve2p1-2-bad.d
 create mode 100644 gas/testsuite/gas/aarch64/sve2p1-2-bad.l
 create mode 100644 gas/testsuite/gas/aarch64/sve2p1-nosve2.s

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