regulator: cpr3-hmss-regulator: use SPEED_BIN in fuse combo selection

Expand the fuse combination specification so that a new set of
fuse combos is used for SPEED_BIN fuse value 1.  Enforce this
mapping:

Fuse combo   SPEED_BIN   CPR_REV
  0 -  7         0        0 - 7
  8 - 15         1        0 - 7

Change-Id: Id15a41bd3e01ab3f14e22f1ce21a5740d102a08e
Signed-off-by: David Collins <collinsd@codeaurora.org>