regulator: cpr-regulator: add support for reading spanned fuse parameters

Add support in the cpr-regulator driver for reading the following
fuse parameters which may span two fuse rows:
qcom,cpr-fuse-target-quot, qcom,cpr-fuse-ro-sel, and
qcom,cpr-fuse-init-voltage.  This feature is required for new
chips which pack CPR parameters tightly without regard for fuse
row boundaries.

Change-Id: Idc28a54a37cdc0e40d25ca56e6726b76fc0db213
Signed-off-by: David Collins <collinsd@codeaurora.org>