target: add support for specifying display panel during init

Modify the display init API to add the ability to specify a
particular panel to be initialized in lieu of using the default
panel for the target.

Change-Id: I105806a9d66fa9f45d5899a56f9ae6b28b097d73
diff --git a/target/msm8226/target_display.c b/target/msm8226/target_display.c
index 772f8d1..60ad23b 100755
--- a/target/msm8226/target_display.c
+++ b/target/msm8226/target_display.c
@@ -341,7 +341,7 @@
 	return ret;
 }
 
-void target_display_init(void)
+void target_display_init(const char *panel_name)
 {
         uint32_t panel_loop = 0;
         uint32_t ret = 0;