css/sgi: rework the core position calculation function
Vishwanatha HG authored
The MT bit in MPIDR is always set for SGI platforms and so the
core position calculation code is updated to take into account
the thread affinity value as well.

Change-Id: I7b2a52707f607dc3859c6bbcd2b145b7987cb4ed
Signed-off-by: default avatarChandni Cherukuri <chandni.cherukuri@arm.com>
Signed-off-by: default avatarVishwanatha HG <vishwanatha.hg@arm.com>
8aaa8634