Move to official repository for branch with default category

Since the about section can only track the default branch, the default
branch can be tracked locally. The androidui branch requires a mirror
with androidui set as default.

shell/android/res/values/strings.xml

@@ -57,7 +57,7 @@
     <string name="about_text">reicast is a dreamcast emulator\n\nVersion: %1$s</string>
     <string name="app_site">Homepage: http://reicast.com</string>
     <string name="beta_site">Betas: http://reicast.loungekatt.com</string>
-    <string name="git_api">https://api.github.com/repos/NoblesseOblige/reicast-emulator/commits</string>
+    <string name="git_api">https://api.github.com/repos/reicast/reicast-emulator/commits</string>
     
     <string-array name="controllers">
     <item>Controller A</item>