xtest: pkcs11_1001: Test CK_UNAVAILABLE_INFORMATION output value

OP-TEE's PKCS#11 TA TEE<->REE interface treats CK_ULONG's as 32 bit.

In 64 bit machines this creates a problem for CK_ULONG values that are
architecture dependent.

One of those defines is CK_UNAVAILABLE_INFORMATION.

This adds test case to make sure that when OP-TEE's PKCS#11 TA should give
CK_UNAVAILABLE_INFORMATION it actually does that.

Signed-off-by: Vesa Jääskeläinen <vesa.jaaskelainen@vaisala.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>