The following three trace events:
ufshcd_clk_gating, ufshcd_hibern8_on_idle and ufshcd_auto_bkops_state
share the same arguments and meaning - logging some state change
in the UFS driver.
Defining those as template instances takes up less memory compared
to be defined as separate trace events.
Change-Id: I92c2bf3eada6f876b8c9e8a7bfc4568c7886548f
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>