also-ucm-conf: replace hardcoded paths to /bin/rm and /bin/mkdir

pkgs/by-name/al/alsa-ucm-conf/package.nix

@@ -3,6 +3,8 @@
   fetchurl,
   lib,
   stdenv,
+  coreutils,
+  kmod,
 }:
 
 stdenv.mkDerivation rec {
@@ -19,6 +21,23 @@ stdenv.mkDerivation rec {
   installPhase = ''
     runHook preInstall
 
+    substituteInPlace ucm2/lib/card-init.conf \
+      --replace-fail "/bin/rm" "${coreutils}/bin/rm" \
+      --replace-fail "/bin/mkdir" "${coreutils}/bin/mkdir"
+
+    files=(
+        "ucm2/HDA/HDA.conf"
+        "ucm2/codecs/rt715/init.conf"
+        "ucm2/codecs/rt715-sdca/init.conf"
+        "ucm2/Intel/cht-bsw-rt5672/cht-bsw-rt5672.conf"
+        "ucm2/Intel/bytcr-rt5640/bytcr-rt5640.conf"
+    )
+
+    for file in "''${files[@]}"; do
+        substituteInPlace "$file" \
+            --replace-fail '/sbin/modprobe' '${kmod}/bin/modprobe'
+    done
+
     mkdir -p $out/share/alsa
     cp -r ucm ucm2 $out/share/alsa