Revert "lava-templates/fvp-*: Comment out license_variable param"

This reverts commit e9a0f8375d867e8f08cfab47e1728d643a439f7b.

Reason for revert: Seeing a timeout in fvp-linux-dtb.dyn-fip.uboot-cortexa710x4-debug FVP test, checking if related.

Change-Id: I88abf4dec11d0701c4e27ec33f2acebc538711ea
diff --git a/script/lava-templates/fvp-linux.yaml b/script/lava-templates/fvp-linux.yaml
index 1bbda15..597354b 100644
--- a/script/lava-templates/fvp-linux.yaml
+++ b/script/lava-templates/fvp-linux.yaml
@@ -60,9 +60,7 @@
 
 - boot:
     method: fvp
-# license_variable is required only for FlexNet licensing. As we're switching
-# to UBL-only config, comment it, to be removed as the next stage.
-#    license_variable: ARMLMD_LICENSE_FILE=${armlmd_license_file}
+    license_variable: ARMLMD_LICENSE_FILE=${armlmd_license_file}
     docker:
       name: ${docker_name}
       local: true
diff --git a/script/lava-templates/fvp-tftf.yaml b/script/lava-templates/fvp-tftf.yaml
index dc98a28..82287f6 100644
--- a/script/lava-templates/fvp-tftf.yaml
+++ b/script/lava-templates/fvp-tftf.yaml
@@ -73,9 +73,7 @@
 
 - boot:
     method: fvp
-# license_variable is required only for FlexNet licensing. As we're switching
-# to UBL-only config, comment it, to be removed as the next stage.
-#    license_variable: ARMLMD_LICENSE_FILE=${armlmd_license_file}
+    license_variable: ARMLMD_LICENSE_FILE=${armlmd_license_file}
     docker:
       name: ${docker_name}
       local: true