manifest: Welcome Android 15

Change-Id: If32497d21f68fe45994b3fe293cefb8ee771c1d1
diff --git a/omni-default.xml b/omni-default.xml
index 21f0733..7e1593f 100644
--- a/omni-default.xml
+++ b/omni-default.xml
@@ -15,17 +15,17 @@
   <include name="omni-extra.xml" />
 
   <!-- OmniROM Projects -->
-  <project path="android" name="android" remote="omnirom" revision="android-14.0" />
+  <project path="android" name="android" remote="omnirom" revision="android-15" />
 
-  <project path="vendor/omni" name="android_vendor_omni" remote="omnirom" revision="android-14.0" />
+  <project path="vendor/omni" name="android_vendor_omni" remote="omnirom" revision="android-15" />
 
   <project path="external/libncurses" name="android_external_libncurses" remote="omnirom" revision="android-14.0" />
   <project path="external/tigervnc" name="android_external_tigervnc" remote="omnirom" revision="android-14.0" />
-  <project path="external/vncflinger" name="android_external_vncflinger" remote="omnirom" revision="android-14.0" />
+  <project path="external/vncflinger" name="android_external_vncflinger" remote="omnirom" revision="android-15" />
   <project path="external/vim" name="android_external_vim" remote="omnirom" revision="android-14.0" />
 
   <project path="packages/apps/Matlog" name="android_packages_apps_Matlog" remote="omnirom" revision="android-14.0" />
-  <project path="packages/apps/OmniLib" name="android_packages_apps_OmniLib" remote="omnirom" revision="android-14.0" />
+  <project path="packages/apps/OmniLib" name="android_packages_apps_OmniLib" remote="omnirom" revision="android-15" />
   <project path="packages/apps/OmniChromium" name="android_packages_apps_OmniChromium" remote="gitlab" revision="android-14.0" />
   <project path="packages/apps/SimpleDeviceConfig" name="android_packages_apps_SimpleDeviceConfig" remote="omnirom" revision="android-13.0" />