drivers: tee: optee: add include for kernel_arch_interface

Build fails with the following error:
> fatal error: kernel_arch_interface.h: No such file or directory

It was found that required header is placed in
${ZEPHYR_BASE}/kernel/include directory so add it to the CMakeLists file.

Signed-off-by: Oleksii Moisieiev <[email protected]>
Reviewed-by: Volodymyr Babchuk <[email protected]>
Acked-by: Dmytro Firsov <[email protected]>

drivers/tee/optee/CMakeLists.txt

@@ -5,4 +5,4 @@ zephyr_library()
 
 zephyr_library_sources(optee.c)
 
-zephyr_library_include_directories(${ZEPHYR_BASE}/arch/${ARCH}/include)
+zephyr_library_include_directories(${ZEPHYR_BASE}/arch/${ARCH}/include ${ZEPHYR_BASE}/kernel/include)