staging/android: move sw_sync related code to sw_sync.c

Split sync_debug and sw_sync in two different files.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/android/sync.h b/drivers/staging/android/sync.h
index 14b61cb..02ecf44 100644
--- a/drivers/staging/android/sync.h
+++ b/drivers/staging/android/sync.h
@@ -132,6 +132,8 @@
 
 #ifdef CONFIG_DEBUG_FS
 
+extern const struct file_operations sw_sync_debugfs_fops;
+
 void sync_timeline_debug_add(struct sync_timeline *obj);
 void sync_timeline_debug_remove(struct sync_timeline *obj);
 void sync_file_debug_add(struct sync_file *fence);