regulator: Fix module desciption for tps65910 regulator

Fix the module desciption and also update Kconfig to include supporting
tps65911 chip.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --cc drivers/regulator/Kconfig
Simple merge

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