target: msm8994: hdmi display init for hdmi primary

In case hdmi has been selected as primary display, initialize hdmi
display by powering on HDMI tx core.

Change-Id: I135ff2704b43e5300a8a2bf61dea4e8b0e1949fe
diff --git a/target/msm8994/target_display.c b/target/msm8994/target_display.c
index 86900ec..71fc136 100644
--- a/target/msm8994/target_display.c
+++ b/target/msm8994/target_display.c
@@ -628,6 +628,8 @@
 			panel_name);
 		return;
 	} else if (!strcmp(panel_name, HDMI_PANEL_NAME)) {
+		dprintf(INFO, "%s: HDMI is primary\n", __func__);
+		mdss_hdmi_display_init(MDP_REV_50, (void *) MIPI_FB_ADDR);
 		return;
 	}