regulator: support da9030 BUCK in da903x driver
regulator: support da9030 BUCK in da903x driver

Support the operation of DA9030 BUCK2 in da903x driver.

Signed-off-by: Haojian Zhuang <979139d45d262f0480136b0da512e0afa0fe79d3@marvell.com>
Acked-by: Mark Brown <b51b9a92386687a9ac927cebfa0f978adeb8cea5@opensource.wolfsonmicro.com>
Acked-by: Eric Miao <60e376623d7bcedd53f4c51cbb2c060fb40a4887@gmail.com>
Acked-by: Mike Rapoport <a17fed27eaa842282862ff7c1b9c8395a26ac320@compulab.co.il>
Signed-off-by: Liam Girdwood <a57ef363056e61beffa2efa59c68550d40db03b0@slimlogic.co.uk>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs