Hi,

[PATCH][Binutils] aarch64: Add support for the id_aa64isar3_el1 system register

AArch64 defines a read-only system register called id_aa64isar3_el1.
This patch also adds relevant tests.

Regression tested on the aarch64-none-elf and aarch64-none-linux-gnu targets
and no regressions was found.

Is this Ok for trunk? I do not have commit rights, if OK, can someone commit on my behalf?

Thanks,
Yury Khrustalev