add almalinux kernel: 6.12.0-55.40.1.andersdsrhcustom9

this is the Almalinux kernel with android binder and PSI enabled

my-ostree-os/kernel/mod-sign.sh

@@ -0,0 +1,37 @@
+#! /bin/bash
+
+# The modules_sign target checks for corresponding .o files for every .ko that
+# is signed. This doesn't work for package builds which re-use the same build
+# directory for every variant, and the .config may change between variants.
+# So instead of using this script to just sign lib/modules/$KernelVer/extra,
+# sign all .ko in the buildroot.
+
+# This essentially duplicates the 'modules_sign' Kbuild target and runs the
+# same commands for those modules.
+
+MODSECKEY=$1
+MODPUBKEY=$2
+moddir=$3
+
+modules=$(find "$moddir" -type f -name '*.ko')
+
+NPROC=$(nproc)
+[ -z "$NPROC" ] && NPROC=1
+
+# NB: this loop runs 2000+ iterations. Try to be fast.
+echo "$modules" | xargs -r -n16 -P "$NPROC" sh -c "
+for mod; do
+    ./scripts/sign-file sha256 $MODSECKEY $MODPUBKEY \$mod
+    rm -f \$mod.sig \$mod.dig
+done
+" DUMMYARG0   # xargs appends ARG1 ARG2..., which go into $mod in for loop.
+
+RANDOMMOD=$(echo "$modules" | sort -R | head -n 1)
+if [ "~Module signature appended~" != "$(tail -c 28 "$RANDOMMOD")" ]; then
+    echo "*****************************"
+    echo "*** Modules are unsigned! ***"
+    echo "*****************************"
+    exit 1
+fi
+
+exit 0