Allow incremental builds for settings.

Change-Id: Iec6788d42c63020b7facfdfc45e1add244bb9523
diff --git a/Android.mk b/Android.mk
index 81f04f7..7043ad4 100644
--- a/Android.mk
+++ b/Android.mk
@@ -18,6 +18,11 @@
 
 LOCAL_PROGUARD_FLAG_FILES := proguard.flags
 
+ifneq ($(INCREMENTAL_BUILDS),)
+    LOCAL_PROGUARD_ENABLED := disabled
+    LOCAL_JACK_ENABLED := incremental
+endif
+
 include frameworks/opt/setupwizard/navigationbar/common.mk
 include frameworks/opt/setupwizard/library/common.mk
 include frameworks/base/packages/SettingsLib/common.mk