regulator: Import esim-regulator driver

[ALM:10872956] [FP4]:esim power enable
 &&&%%%comment:[FP4]:esim power enable
 &&&%%%bug number:10872956
 &&&%%%product name:sm7225_r_fp4
 &&&%%%root cause:Coding
 &&&%%%Bug category:T2M
 &&&%%%Module_Impact:kernel
 &&&%%%Test_Suggestion:no
 &&&%%%Solution:add esim power
 &&&%%%Test_Report:test is ok
 &&&%%%VAL Can Test:NO

Change-Id: Iab5482999dd29b3bae1144f8d993fbcbd4301a4b