regulator: cprh-kbss-regulator: add CPR aging adjustment support

Add support to read the initial CPR aging sensor skew fuse value
and to perform an aging measurement and subsequent voltage
adjustment.

Change-Id: I51a6762d026e7b5a4e39e957144f1b21c5ef121a
CRs-Fixed: 1048890
Signed-off-by: David Collins <collinsd@codeaurora.org>