coresight: use devm apis in driver probe

Using devm_* apis helps in simplifying driver init and exit paths,
hence switch to using them in the driver probe calls.

Change-Id: I41aba1129f6638fcee859e57f957fa3f14c1c439
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
6 files changed