zkey: Fix -Wmaybe-uninitialized warnings in zkey-cryptsetup.c
zkey: Fix -Wmaybe-uninitialized warnings in zkey-cryptsetup.c

Signed-off-by: Ingo Franzki <fa8d39f13ae2429c04f0388a0ea18c43b0cb5bf2@linux.ibm.com>
Signed-off-by: Jan Höppner <96138615ab4af0813785fa10d283f3d37eca3b78@linux.ibm.com>

ibm-s390-tools/s390-tools,ibm-s390-tools/s390-tools,ibm-s390-tools/s390-tools,ibm-s390-tools/s390-tools