arm-system-ready/arm-systemready-ir-acs: add version to download filename

The download filename wasn't versioned so multiple versions would write
to the same file on disk and conflict, causing repeated downloads and
fetch failures.

Add the PV to the filename on disk to resolve this.

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>

meta-arm-systemready/recipes-test/arm-systemready-acs/arm-systemready-ir-acs.bb

@@ -49,9 +49,9 @@ PV = "2.0.0"
 PV_DATE = "23.03"
 FULL_PV = "v${PV_DATE}_${PV}"
 ARM_SYSTEMREADY_IR_ACS_BRANCH ?= "main"
-IMAGE_FILENAME = "ir-acs-live-image-generic-arm64.wic"
+IMAGE_FILENAME = "ir-acs-live-image-generic-arm64-${PV}.wic"
 SRC_URI = " \
-    https://github.com/ARM-software/arm-systemready/raw/${ARM_SYSTEMREADY_IR_ACS_BRANCH}/IR/prebuilt_images/${FULL_PV}/${IMAGE_FILENAME}.xz;name=acs-img \
+    https://github.com/ARM-software/arm-systemready/raw/${ARM_SYSTEMREADY_IR_ACS_BRANCH}/IR/prebuilt_images/${FULL_PV}/ir-acs-live-image-generic-arm64.wic.xz;name=acs-img;downloadfilename=${IMAGE_FILENAME}.xz \
     git://git.gitlab.arm.com/systemready/systemready-ir-template.git;protocol=https;nobranch=1;destsuffix=systemready-ir-template;name=sr-ir-template \
 "
 SRC_URI[acs-img.sha256sum] = "ea52f84dab44bde97de3e2d2224d883acaae35724dd8e2bdfb125de49040f9b3"