Rename go/src_flags directory as go/src

This CL is preparation work to implement Modular shortcuts component in launcher using  java/code swap.

Bug: 112904271
Test: Manual test
Change-Id: I35cf81e95fe487a384d4e9f17ea303093197318f
diff --git a/Android.mk b/Android.mk
index fbe19b0..ba820fb 100644
--- a/Android.mk
+++ b/Android.mk
@@ -131,7 +131,7 @@
 LOCAL_SRC_FILES := \
     $(call all-java-files-under, src) \
     $(call all-java-files-under, src_ui_overrides) \
-    $(call all-java-files-under, go/src_flags)
+    $(call all-java-files-under, go/src)
 
 LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/go/res
 
@@ -235,7 +235,7 @@
 LOCAL_SRC_FILES := \
     $(call all-java-files-under, src) \
     $(call all-java-files-under, quickstep/src) \
-    $(call all-java-files-under, go/src_flags)
+    $(call all-java-files-under, go/src)
 
 LOCAL_RESOURCE_DIR := \
     $(LOCAL_PATH)/quickstep/res \