gcc: add support for Neoverse N2 CPU

This patch backports the AArch32 support for Arm's Neoverse N2 CPU.

Upstream-Status: Backport
[https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=d7e8411f6a333d4054894ad3b23f23415a525230

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Signed-off-by: pgowda <pgowda.cve@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>