Fix issue with OVMF_CODE.fd symlink (#1698)

On subsequent runs this will fail because the link has already been
created, but it still fails the -f test because it's a link not
a file. Also check for -L to fix this.

Author: cybertron

02_configure_host.sh

@@ -157,7 +157,7 @@ ansible-playbook \
 # NOTE(elfosardo): /usr/share/OVMF/OVMF_CODE.fd does not exist in the ovmf
 # package anymore, so we need to create a link to that until metal3-dev-env
 # fixes that, probably when switching to UEFI by default
-if ! [[ -f /usr/share/OVMF/OVMF_CODE.fd ]]; then
+if ! [[ -f /usr/share/OVMF/OVMF_CODE.fd || -L /usr/share/OVMF/OVMF_CODE.fd ]]; then
   sudo ln -s /usr/share/edk2/ovmf/OVMF_CODE.fd /usr/share/OVMF/
 fi