CI: Move llvm crossfiles from image to project

Since dav1d was the only user of these crossfiles, it was agreed upon to
remove them from the image [0] and move to dav1d directly. [1]

[0] https://code.videolan.org/videolan/docker-images/-/merge_requests/293
[1] https://code.videolan.org/videolan/docker-images/-/merge_requests/294#note_434720

.gitlab-ci.yml

@@ -18,7 +18,7 @@ stages:
         - amd64
 
 .debian-llvm-mingw-common:
-    image: registry.videolan.org/vlc-debian-llvm-msvcrt:20240406142551
+    image: registry.videolan.org/vlc-debian-llvm-msvcrt:20240415145055
     stage: build
     tags:
         - docker
@@ -276,7 +276,7 @@ build-win-arm:
                             --werror
                             --libdir lib
                             --prefix "$(pwd)/build/dav1d_install"
-                            --cross-file /opt/crossfiles/${CROSSFILE}.meson
+                            --cross-file package/crossfiles/${CROSSFILE}.meson
                             -Ddefault_library=both
                             -Dtrim_dsp=false
         - ninja -C build

package/crossfiles/aarch64-w64-mingw32.meson

@@ -0,0 +1,16 @@
+[binaries]
+c = 'aarch64-w64-mingw32-clang'
+cpp = 'aarch64-w64-mingw32-clang++'
+ar = 'aarch64-w64-mingw32-ar'
+strip = 'aarch64-w64-mingw32-strip'
+pkgconfig = 'pkg-config'
+windres = 'aarch64-w64-mingw32-windres'
+
+[properties]
+c_link_args = ['-static-libgcc']
+
+[host_machine]
+system = 'windows'
+cpu_family = 'aarch64'
+cpu = 'aarch64'
+endian = 'little'

package/crossfiles/armv7-w64-mingw32.meson

@@ -0,0 +1,16 @@
+[binaries]
+c = 'armv7-w64-mingw32-clang'
+cpp = 'armv7-w64-mingw32-clang++'
+ar = 'armv7-w64-mingw32-ar'
+strip = 'armv7-w64-mingw32-strip'
+pkgconfig = 'pkg-config'
+windres = 'armv7-w64-mingw32-windres'
+
+[properties]
+c_link_args = ['-static-libgcc']
+
+[host_machine]
+system = 'windows'
+cpu_family = 'arm'
+cpu = 'armv7'
+endian = 'little'