arm64/ptrace: Use system_supports_tpidr2() to check for TPIDR2 support

We have a separate system_supports_tpidr2() to check for TPIDR2 support
but were using system_supports_sme() in tls_set(). While these are
currently identical let's use the specific check instead so we don't have
any surprises in future.

Reported-by: Will Deacon <will@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
1 file changed