android: update OmniGears to android-9.0

Change-Id: I2957e06b1b0e25ba4c52c5b32e7a13dd37c8f9fb
diff --git a/omni-default.xml b/omni-default.xml
index 0f044b6..a4d1822 100644
--- a/omni-default.xml
+++ b/omni-default.xml
@@ -23,7 +23,7 @@
   <project path="packages/apps/MonthCalendarWidget" name="android_packages_apps_MonthCalendarWidget" remote="omnirom" revision="android-9.0" />
   <project path="packages/apps/OmniChange" name="android_packages_apps_OmniChange" remote="omnirom" revision="android-9.0" />
   <project path="packages/apps/OmniClock" name="android_packages_apps_OmniClock" remote="omnirom" revision="android-9.0" />
-  <project path="packages/apps/OmniGears" name="android_packages_apps_OmniGears" remote="omnirom" revision="android-8.1" />
+  <project path="packages/apps/OmniGears" name="android_packages_apps_OmniGears" remote="omnirom" revision="android-9.0" />
   <project path="packages/apps/OmniLib" name="android_packages_apps_OmniLib" remote="omnirom" revision="android-9.0" />
   <project path="packages/apps/OmniBrain" name="android_packages_apps_OmniBrain" remote="omnirom" revision="android-8.1" />
   <project path="packages/services/OmniJaws" name="android_packages_services_OmniJaws" remote="omnirom" revision="android-9.0" />