soc: qcom: glink: Add support to set affinities

There is a need to pin the interrupts and rx worker thread to a
specific cpu set for power and performance. Add support to define
the cpu set in device tree. This change does not include any hotplug
support.

Change-Id: Ibe651e987e72f5119e9e8453d87fa8059219ec1f
Signed-off-by: Chris Lew <clew@codeaurora.org>