Fixes to wear recovery for N

Bug: 27336841

Change-Id: If4632e9791cce2c39590a4012687271f59a60af1
diff --git a/wear_ui.h b/wear_ui.h
index 63c1b6e..768141c 100644
--- a/wear_ui.h
+++ b/wear_ui.h
@@ -47,6 +47,7 @@
 
     // printing messages
     void Print(const char* fmt, ...);
+    void PrintOnScreenOnly(const char* fmt, ...) __printflike(2, 3);
     void ShowFile(const char* filename);
     void ShowFile(FILE* fp);
 
@@ -133,6 +134,7 @@
     void ClearText();
     void DrawTextLine(int x, int* y, const char* line, bool bold);
     void DrawTextLines(int x, int* y, const char* const* lines);
+    void PrintV(const char*, bool, va_list);
 };
 
 #endif  // RECOVERY_WEAR_UI_H