ARM: OMAP4: panda: add statics to remove warnings

Add statics to board-omap4-panda.c's internal functions and data
structures to remove sparse warnings:

arch/arm/mach-omap2/board-omap4panda.c:234:29: warning: symbol
'omap_panda_wlan_data' was not declared. Should it be static?
arch/arm/mach-omap2/board-omap4panda.c:441:24: warning: symbol
'omap4_panda_dvi_device' was not declared. Should it be static?
arch/arm/mach-omap2/board-omap4panda.c:451:12: warning: symbol
'omap4_panda_dvi_init' was not declared. Should it be static?
arch/arm/mach-omap2/board-omap4panda.c:512:13: warning: symbol
'omap4_panda_display_init' was not declared. Should it be static?

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/board-omap4panda.c

@@ -231,7 +231,7 @@ static struct platform_device omap_vwlan_device = {
 	},
 };
 
-struct wl12xx_platform_data omap_panda_wlan_data  __initdata = {
+static struct wl12xx_platform_data omap_panda_wlan_data  __initdata = {
 	/* PANDA ref clock is 38.4 MHz */
 	.board_ref_clock = 2,
 };
@@ -389,7 +389,7 @@ static struct panel_dvi_platform_data omap4_dvi_panel = {
 	.i2c_bus_num = 3,
 };
 
-struct omap_dss_device omap4_panda_dvi_device = {
+static struct omap_dss_device omap4_panda_dvi_device = {
 	.type			= OMAP_DISPLAY_TYPE_DPI,
 	.name			= "dvi",
 	.driver_name		= "dvi",
@@ -399,7 +399,7 @@ struct omap_dss_device omap4_panda_dvi_device = {
 	.channel		= OMAP_DSS_CHANNEL_LCD2,
 };
 
-int __init omap4_panda_dvi_init(void)
+static int __init omap4_panda_dvi_init(void)
 {
 	int r;
 
@@ -460,7 +460,7 @@ static struct omap_dss_board_info omap4_panda_dss_data = {
 	.default_device	= &omap4_panda_dvi_device,
 };
 
-void __init omap4_panda_display_init(void)
+static void __init omap4_panda_display_init(void)
 {
 	int r;