msm_11ad: update affinity to start from the first golden core

Currently the first fastest core is chosen for affinity, in some
cases there are three clusters and the last cluster (the fastest)
include only one core.
In this case we need to choose the first core in the second
cluster to be able to support a case of multiple interrupt lines.

Change-Id: I1ad0c569474fdcfe657bc7b9ab2f363f36e0a0db
Signed-off-by: Alexei Avshalom Lazar <ailizaro@codeaurora.org>