UPSTREAM: arm64: tlbflush: remove redundant ASID casts to (unsigned long)

The ASID macro returns a 64-bit (long long) value, so there is no need
to cast to (unsigned long) before shifting prior to a TLBI operation.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Bug: 31432001
Change-Id: I8baba83d1f3d3c68ac8e92bbe63fa67ff41a9b20
(cherry picked from commit f3e002c24e1f3b66f6e392ecd6928b5d04672c54)
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>