disp: msm: dp: use the new altmode framework

Use the new altmode framework to receive the connect, disconnect
and attention events.

Change-Id: Ic542525b526e1abd0f153c293bca6e4cdbb6bf0b
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>

msm/dp/dp_debug.h

@@ -9,7 +9,6 @@
 #include "dp_panel.h"
 #include "dp_ctrl.h"
 #include "dp_link.h"
-#include "dp_usbpd.h"
 #include "dp_aux.h"
 #include "dp_display.h"
 #include "dp_pll.h"