regulator: labibb: configure LCD/AMOLED mode and SWIRE control selectively

For LABIBB peripherals in pmicobalt, bootloader configures
LCD/AMOLED mode and SWIRE control based on a GPIO selector.
Hence, add support to configure them selectively.

While at it, fix the variable name used in read/write APIs to
reflect the address rather than base. Also use the pmic subtype
macros from qpnp-revid.h directly.

CRs-Fixed: 1071971
Change-Id: Ibbf3d432709eadf0808e062726804be6b2a065ee
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>