storage:zephyr: Fix invalid define
storage:zephyr: Fix invalid define

An invalid define was introduced (again) in
53a199c7cb4b264d88b22a1078df513988841587

Change-Id: I0031aa609e714ae983c3fffd146a2c493e41ffc9
Signed-off-by: Flavio Ceolin <979b9165500b0741b9d0500e2efd74fc1547bff7@intel.com>
Reviewed-by: Kishen Maloor <c62ddea3cd661a9268bff15f07fc2229cdc9ac02@intel.com>
Signed-off-by: Thiago Macieira <0ed1648d92ca0373297a182b1dba1b974ad10d88@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/10441

iotivity/iotivity-constrained,iotivity/iotivity-constrained,iotivity/iotivity-constrained,iotivity/iotivity-constrained