clk: msm: Add reset support in dummy clock driver

Some pass-through devices on msm8996 virtual platform need
dummy clock reset.

Change-Id: I88f4028fe56e428f12b2149a4413c3328da880bb
Signed-off-by: Ramachandran Venkataramani <ramavenk@codeaurora.org>
Signed-off-by: Zhiqiang Tu <ztu@codeaurora.org>