gst-ffmpeg-static: fix static link using the libtool libs

Fixes #59250
android: there luckily is no x on android
gst-plugins-good-static: Keep in sync with non-static recipe
Add opensuse 12.2 to init script
Add new enum value for OpenSuSE 12.2
Use local dbus-binding-tool when cross-compiling
Added avahi and libdaemon recipes
Fixed package names for bootstrap of OpenSuse
gst-ffmpeg-static: Fix post_install step by making sure files are in place before we use them
gst-plugins-good-static: Chain up to parent class' prepare() function
Bump libffi version to 3.0.11

  + avoid reconfigure to be called as it breaks configure
build.py: do not check if None when we are working with empty dictionnary

self.append_env and self.new_env are indeed setted to {} in __init__ so
no way they would be None
Add support to iOS
Don't override platform in the iOS configs
Set GLib/pixman configure check overrides in the ios.config instead of recipes
Don't build pango with X11 support on iOS
ios: add support for SDK 6.1 and make this one the deafult
libtool: fix libraries extensions for iOS
bootstrap: add gas-preprocessor for iOS assembly code
ios.config: use tools from the iOS SDK