qseecom: Fix compilation errors

While porting the changes from older kernel version to newer
version, there are few function prototype got changed which
leads to compilation error, this patch fixes those errors by
using the appropriate functions.

Change-Id: I003d7354ae4709594677b34696b22e5f34d02a2b
Signed-off-by: AnilKumar Chimata <anilc@codeaurora.org>