qseecom: Fix clock get failures

Pass the device node with of_node to clk_get(), to get the clock struct.
This patch fixes the issue by passing proper device handle with of_node
to clock APIs to get the appropriate clock node.

Change-Id: I01a2caf7d86a4399b1bb4a455ef8ecbbad5ad9a2
Signed-off-by: AnilKumar Chimata <anilc@codeaurora.org>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
qseecom: Validate the pointer returned by ion_import_dma_buf

Do a "IS_ERR_OR_NULL" check for the return value of
ion_import_dma_buf.

Change-Id: Iaac8b59b1f076d002430e0e6aba055bd88c83ed7
Signed-off-by: Hariprasad Dhalinarasimha <hnamgund@codeaurora.org>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>