scsi: ufs: fix parameter type from bool to enum ufs_notify_change_status

This change fixes the signature of the routine
ufshcd_vops_clk_scale_notify() and the callback clk_scale_notify
to receive enum ufs_notify_change_status instead of bool as their 3rd
parameter.

Change-Id: I8463f4f5f0a77bcbc3b0bcdfd05d1a02e334dc8e
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>