gitlab-ci: Update kernel for LAVA jobs to 5.4-rc4

Update to 5.4-rc4 so we can test Panfrost on devices with Mali T720 and
T820.

A bug was found that prevented things working at all on RK3288 devices,
so we carry a patch for now in my personal fork.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Daniel Stone <daniels@collabora.com>

.gitlab-ci/lava-debian-install.sh

@@ -155,7 +155,7 @@ apt-get -y remove \*llvm\*
 
 
 ############### Cross-build kernel
-KERNEL_URL="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/snapshot/linux-5.3-rc8.tar.gz"
+KERNEL_URL="https://gitlab.freedesktop.org/tomeu/linux/-/archive/panfrost-veyron-fix/linux-panfrost-veyron-fix.tar.gz"
 export ARCH=${KERNEL_ARCH}
 export CROSS_COMPILE="${GCC_ARCH}-"
 

.gitlab-ci/lava-gitlab-ci.yml

@@ -1,6 +1,6 @@
 variables:
     LAVA_DEBIAN_VERSION: testing-slim
-    LAVA_IMAGE_TAG: "lava-2019-10-10-1"
+    LAVA_IMAGE_TAG: "lava-2019-10-23-1"
 
 include:
   - project: 'wayland/ci-templates'