Boomshine Fix rb.touchscreen_set_mode()

Change-Id: I5bc835f1e006ed923cf0b7a3fcf91d4e357913ed
diff --git a/apps/plugins/boomshine.lua b/apps/plugins/boomshine.lua
index 224708d..c7ed6df 100644
--- a/apps/plugins/boomshine.lua
+++ b/apps/plugins/boomshine.lua
@@ -537,7 +537,7 @@
 end
 
 if HAS_TOUCHSCREEN then
-    rb.touchscreen_set_mode(rb.TOUCHSCREEN_POINT)
+    rb.touchscreen_mode(rb.TOUCHSCREEN_POINT)
 end
 
 rb.backlight_force_on()