regulator: tps65910: Simplify setting enable_mask for regulators

BBCH_BBCHEN_MASK is equivalent to TPS65910_SUPPLY_STATE_ENABLED.
So all regulators have the same enable_mask setting.

BBCH_BBCHEN_MASK and BBCH_BBCHEN_SHIFT are not used now, remove them.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --cc drivers/regulator/tps65910-regulator.c
Simple merge

diff --cc include/linux/mfd/tps65910.h
Simple merge