arm64/hwcap: Document allocation of upper bits of AT_HWCAP

The top two bits of AT_HWCAP are reserved for use by glibc and the rest of
the top 32 bits are being kept unallocated for potential use by glibc.
Document this in the header.

Signed-off-by: Mark Brown <[email protected]>
Acked-by: Catalin Marinas <[email protected]>
Acked-by: Szabolcs Nagy <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>

0 files changed, 0 insertions, 0 deletions