ffmpeg: sort configure and add missing dependency

extra/ffmpeg/build

@@ -4,25 +4,25 @@
     --cc="${CC:-cc}" \
     --cxx="${CXX:-c++}" \
     --prefix=/usr \
-    --enable-shared \
+    --disable-debug \
+    --disable-libxml2 \
     --disable-static \
     --enable-gpl \
-    --enable-version3 \
-    --enable-nonfree \
-    --enable-openssl \
     --enable-libass \
+    --enable-libdrm \
     --enable-libmp3lame \
     --enable-libopus \
     --enable-libvorbis \
     --enable-libvpx \
+    --enable-libwebp \
     --enable-libx264 \
     --enable-libx265 \
     --enable-libxvid \
-    --enable-libwebp \
-    --enable-libdrm \
+    --enable-nonfree \
+    --enable-openssl \
+    --enable-shared \
+    --enable-version3 \
     --x86asmexe=nasm \
-    --disable-debug \
-    --disable-libxml2
 
 make
 make DESTDIR="$1" install

extra/ffmpeg/depends

@@ -1,6 +1,7 @@
 alsa-lib
 lame
 libass
+libdrm
 libogg
 libressl
 libvorbis