power: smb1360-charger-fg: Fix the initialization sequence in probe

Avoid SMB register access before local initializations are complete.
While at it, fix the shift operator while updating the alg_bitmap
for the OTP backup register configuration.

CRs-Fixed: 1089564
Change-Id: I09f8d65f1ed50c35ec86bf2bd5e0919fa474a433
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>