target: msm8909w: add subtype support for apq8009w BG Alpha

Add subtype support for apq8009w BG Alpha.

Change-Id: I4a006fe4a695aaddb6d53cdb460a45888f69cb32
diff --git a/target/msm8909/oem_panel.c b/target/msm8909/oem_panel.c
index 051f3cb..add0d9e 100644
--- a/target/msm8909/oem_panel.c
+++ b/target/msm8909/oem_panel.c
@@ -60,10 +60,6 @@
 	QRD_SKUT = 0x0A,
 };
 
-enum {
-	BG_WTP = 0x0F,
-	WTP_V1 = 0x12,
-};
 /*---------------------------------------------------------------------------*/
 /* static panel selection variable                                           */
 /*---------------------------------------------------------------------------*/
@@ -484,8 +480,9 @@
 	case HW_PLATFORM_MTP:
 	case HW_PLATFORM_RCM:
 		switch (platform_subtype) {
-		case BG_WTP:
-		case WTP_V1:
+		case HW_PLATFORM_SUBTYPE_8909_PM660_V1:
+		case HW_PLATFORM_SUBTYPE_8909_PM660:
+		case HW_PLATFORM_SUBTYPE_8909_COMPAL_ALPHA:
 			panel_id = AUO_390P_CMD_PANEL;
 			break;
 		default: