tests: drivers: optee: handle exchange capabilities call

Capabilities should be set correctly or optee will show error message:
[00:00:00.000,000] <err> optee: OPTEE does not support dynamic shared
memory

Test suite should set optee UID or the following error message should
be displayed:
[00:00:00.000,000] <err> optee: OPTEE API UID mismatch

Signed-off-by: Oleksii Moisieiev <oleksii_moisieiev@epam.com>