power: qpnp-charger: fix ULPM address for SMBCL and SMBBP

The SMBCL and SMBBP BATFET_CTRL registers are at a different
location than the one for SMBB.

Fix this by using the correct register offset for the ULPM
batfet regulator.

CRs-Fixed: 539624
Change-Id: Ie7802901cc683259e8b545d244c0d7f580074091
Signed-off-by: David Keitel <dkeitel@codeaurora.org>