In devstack/lib/ironic, IRONIC_DEPLOY_DRIVER is defined at line 341.
However variables which use IRONIC_DEPLOY_DRIVER in default value
(e.g. IRONIC_DEPLOY_RAMDISK, IRONIC_DEPLOY_KERNEL, IRONIC_DEPLOY_ISO
and IRONIC_EFIBOOT) are defined at line 276-282.
This will cause problem at line 295-296:
if [[ "$IRONIC_BUILD_DEPLOY_RAMDISK" == "False" && \
! (-e "$IRONIC_DEPLOY_RAMDISK" && -e "$IRONIC_DEPLOY_KERNEL")
So, this commit moves definition of IRONIC_DEPLOY_DRIVER before
its first use.
Change-Id: I74acb32714ce8830d4697fc796146b894aa7d8c9