manifest: track android-15-lfs branch for fw/base

Change-Id: Ia0bd7e264de95ffff03e82fb5f379c6d8f6fe3c2
diff --git a/omni-aosp.xml b/omni-aosp.xml
index bbcca0c..1167621 100644
--- a/omni-aosp.xml
+++ b/omni-aosp.xml
@@ -40,7 +40,7 @@
     <project path="external/wpa_supplicant_8" name="android_external_wpa_supplicant_8" remote="omnirom" revision="android-15" />
 
     <project path="frameworks/av" name="android_frameworks_av" remote="omnirom" revision="android-15" />
-    <project path="frameworks/base" name="android_frameworks_base" remote="omnirom" revision="android-15" />
+    <project path="frameworks/base" name="android_frameworks_base" remote="omnirom" revision="android-15-lfs" />
     <project path="frameworks/native" name="android_frameworks_native" remote="omnirom" revision="android-15" />
     <project path="frameworks/opt/telephony" name="android_frameworks_opt_telephony" remote="omnirom" revision="android-15" />