Revert "qseecom: change qseecom bus scaling timer operation"

This reverts  commit 06418b79767c16f0637c23e516ccd0b7ece51dd2.

Change-Id: I59a93084584e7a2608d8af097bdbb50391c5a052
Signed-off-by: Zhen Kong <zkong@codeaurora.org>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
qseecom: change qseecom bus scaling timer operation

To ensure ce clock is not disabled before tz operation is completed,
we delete the old timer when tz side operation begins, and then add
a new timer after tz operation is completed.

Change-Id: I4bc8fe3d9305cc1ed5db8e6490832fcc791ef3d7
Signed-off-by: Zhen Kong <zkong@codeaurora.org>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
qseecom: Ensure CE clk is managed properly

clk access ref count is not updated correctly when issuing a
request that requires enabling clk. this results in leaving the
clk on during regular operation resulting in failure of the
device to go into low power mode.

Change-Id: I80232433ff09277fe83d78142dcec75e7493d96e
Signed-off-by: Zhen Kong <zkong@codeaurora.org>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>