board: 8064: Add boot parameter support for HDMI primary display

Add a boot parameter to the board display file to support runtime
enablement of HDMI as primary display for APQ8064.

Change-Id: I645fe08df90352ae6344ae6f0fed19fcea3b3f67
Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-8064.h b/arch/arm/mach-msm/board-8064.h
index c19a039..938d2ea 100644
--- a/arch/arm/mach-msm/board-8064.h
+++ b/arch/arm/mach-msm/board-8064.h
@@ -73,6 +73,8 @@
 void apq8064_allocate_fb_region(void);
 void apq8064_mdp_writeback(struct memtype_reserve *reserve_table);
 uint32_t apq8064_rpm_get_swfi_latency(void);
+void __init apq8064_set_display_params(char *prim_panel, char *ext_panel);
+extern char hdmi_is_primary;
 
 void apq8064_init_gpu(void);
 void apq8064_pm8xxx_gpio_mpp_init(void);