driver: tty: qcom: Enable suspend/resume of serial driver

Console driver does not register with suspend and resume framework
hence does not disable its resources resulting in suspend failure.
Enable the same for achiving suspend and resume.

Change-Id: I04d7a5458afd0c9243dbc0ec7fd78ca00dfc7418
Signed-off-by: Archit Saxena <archsaxe@codeaurora.org>