Update libSDL2 package and add X and Wayland bindings (#3006)

Remove redundant dependencies

packages/libsdl2.rb

@@ -3,32 +3,24 @@ require 'package'
 class Libsdl2 < Package
   description 'Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D.'
   homepage 'http://www.libsdl.org'
-  version '2.0.8'
-  source_url 'https://www.libsdl.org/release/SDL2-2.0.8.tar.gz'
-  source_sha256 'edc77c57308661d576e843344d8638e025a7818bff73f8fbfab09c3c5fd092ec'
+  version '2.0.9'
+  source_url 'https://www.libsdl.org/release/SDL2-2.0.9.tar.gz'
+  source_sha256 '255186dc676ecd0c1dbf10ec8a2cc5d6869b5079d8a38194c2aecdff54b324b1'
 
   binary_url ({
-    aarch64: 'https://dl.bintray.com/chromebrew/chromebrew/libsdl2-2.0.8-chromeos-armv7l.tar.xz',
-     armv7l: 'https://dl.bintray.com/chromebrew/chromebrew/libsdl2-2.0.8-chromeos-armv7l.tar.xz',
-       i686: 'https://dl.bintray.com/chromebrew/chromebrew/libsdl2-2.0.8-chromeos-i686.tar.xz',
-     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/libsdl2-2.0.8-chromeos-x86_64.tar.xz',
   })
   binary_sha256 ({
-    aarch64: '8d72ba834b2b3134f31b48f50febba28063da56f1e4dea97baffe1eca55b337d',
-     armv7l: '8d72ba834b2b3134f31b48f50febba28063da56f1e4dea97baffe1eca55b337d',
-       i686: '1c54d9a41d86ceeb78fa6b2f688ae886d5aa00c694e30cce173bd5ec8444195f',
-     x86_64: 'c771bddb8be9b2637978593a013f880f6faeea651d93c66fdb92f38c30100580',
   })
 
-  depends_on 'dbus'
-  depends_on 'eudev'
+  depends_on 'xwayland'
+  depends_on 'alsa_lib'
+  depends_on 'pulseaudio'
+  depends_on 'nasm' => :build
 
   def self.build
     system './configure',
            "--prefix=#{CREW_PREFIX}",
-           "--libdir=#{CREW_LIB_PREFIX}",
-           '--disable-video-wayland',
-           '--disable-video-x11'
+           "--libdir=#{CREW_LIB_PREFIX}"
   end
 
   def self.install