gitlab-ci: Re-add kernels for bare-metal

I mistakenly removed what I thought were remnants of when Freedreno used
LAVA for their DUTs. lava_arm.sh is used for baremetal, so re-add that
code.

Fixes: dcd171f5e9 ("gitlab-ci: More stable URL for kernel and ramdisk artifacts, for LAVA")
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5839>

.gitlab-ci/create-rootfs.sh

@@ -13,6 +13,7 @@ apt-get -y install --no-install-recommends \
     libdrm-nouveau2 \
     libx11-6 \
     libx11-xcb1 \
+    firmware-qcom-media \
     netcat-openbsd \
     python3 \
     libpython3.7 \
@@ -37,13 +38,19 @@ exec sh
 EOF
 chmod +x  /init
 
+mkdir -p /lib/firmware/rtl_nic
+wget https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/rtl_nic/rtl8153a-3.fw -O /lib/firmware/rtl_nic/rtl8153a-3.fw
+
 #######################################################################
 # Strip the image to a small minimal system without removing the debian
 # toolchain.
 
-# xz compress firmware so it doesn't waste RAM at runtime.
+# xz compress firmware so it doesn't waste RAM at runtime.  Except db820c's
+# GPU firmware, due to using a precompiled kernel without compression support.
 find /lib/firmware -type f -print0 | \
+    grep -vz a530 | \
     xargs -0r -P4 -n4 xz -T1 -C crc32
+ln -s /lib/firmware/qcom/a530* /lib/firmware/
 
 # Copy timezone file and remove tzdata package
 rm -rf /etc/localtime