qseecom: Add new dfab clock definition to the driver.

Currently, the qseecom driver uses the dfab clock definition
of scm driver. The new definition fixes this problem.
The driver should for NULL before setting the clock rate.

Change-Id: Iad653ee855b834a475b43502d36e4673c4bd03a3
Signed-off-by: Ramesh Masavarapu <rameshm@codeaurora.org>
2 files changed