audio,video: Use manual implementations for fns using *Endianness

{Audio,Video}Endianness is an enumeration to represent the two possible
values in Rust but this enumeration does not exist as such in C, where
it is merely an integer with some constants defining possible values.

gstreamer-audio/Gir.toml

@@ -154,6 +154,11 @@ status = "generate"
     # as AudioFormatInfo::from_format()
     ignore = true
 
+    [[object.function]]
+    name = "build_integer"
+    # Use custom AudioEndianness enum
+    manual = true
+
 [[object]]
 name = "GstAudio.AudioStreamAlign"
 status = "generate"

gstreamer-video/Gir.toml

@@ -400,6 +400,11 @@ status = "generate"
     # as VideoFormatInfo::from_format()
     ignore = true
 
+    [[object.function]]
+    name = "from_masks"
+    # Use custom VideoEndianness enum
+    manual = true
+
 [[object]]
 name = "GstVideo.VideoSink"
 status = "generate"