ARM: OMAP4+: Add support for getting pbias info from board

ARM: OMAP4+: Add support for getting pbias info from board

Palmas driver assumes it is always TPS659xx regulator on all DRA7xx based
boards to enable mmc regulator. This is not true always like in case of
DRA71x-evm. So get this information based on the board.

Signed-off-by: Lokesh Vutla <[email protected]>
Signed-off-by: Vignesh R <[email protected]>
Signed-off-by: Nishanth Menon <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
[trini: Delete omap4_vmmc_pbias_config from omap_hsmmc.c]
Signed-off-by: Tom Rini <[email protected]>