The ufshcd_wb_presrv_usrspc_keep_vcc_on() function has deviatedThanks!
from its original implementation. The "_keep_vcc_on" part of the
function name is misleading. Rename the function to
ufshcd_wb_curr_buff_threshold_check() to improve the
readability. Also, updated the comments in the function.
There is no change to the functionality.