ARM: 7934/1: DT/kernel: fix arch_match_cpu_phys_id to avoid erroneous match

The MPIDR contains specific bitfields(MPIDR.Aff{2..0}) which uniquely
identify a CPU, in addition to some non-identifying information and
reserved bits. The ARM cpu binding defines the 'reg' property to only
contain the affinity bits, and any cpu nodes with other bits set in
their 'reg' entry are skipped.

As such it is not necessary to mask the phys_id with MPIDR_HWID_BITMASK,
and doing so could lead to matching erroneous CPU nodes in the device
tree. This patch removes the masking of the physical identifier.

Change-Id: I68d278da658e50faa820c95ccff91c12ec3734ac
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Git-commit: e44ef891e9e68b6ce7d3fd3bac73b7d5433050ae
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


[sramana@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Srinivas Ramana <sramana@codeaurora.org>