module/optee/clock: fix device error cases
Add several missing tests on error return codes from OP-TEE clock API functions.
Change-Id: Ia43134da655437fa35858f8197b239c84713faf9 Fixes: 06f4e993 ("module/optee: Add optee clock module") Signed-off-by: Etienne Carriere etienne.carriere@foss.st.com