soc: qcom: smem: Update max processors in soc

Increase the max amount of processors in the soc to account for NPU.
Also update the copyright and change to SPDX format.

Change-Id: Ic339cdd7cccc4a1a1e21b124ecfee15dde76c69a
Signed-off-by: Chris Lew <clew@codeaurora.org>