ARM: OMAP2+: Remove custom init_irq for remaining boards

With SoC specific timers, board specific init_irq is
no longer needed. Earlier this was still needed to
initialize the gptimer12 on Beagle based boards.

Also convert board-h4.c to use omap2_init_irq accidentally
did not get converted earlier.

Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/board-omap3stalker.c b/arch/arm/mach-omap2/board-omap3stalker.c
index 807c274..fa58a0f 100644
--- a/arch/arm/mach-omap2/board-omap3stalker.c
+++ b/arch/arm/mach-omap2/board-omap3stalker.c
@@ -428,11 +428,6 @@
 static struct omap_board_config_kernel omap3_stalker_config[] __initdata = {
 };
 
-static void __init omap3_stalker_init_irq(void)
-{
-	omap3_init_irq();
-}
-
 static struct platform_device *omap3_stalker_devices[] __initdata = {
 	&keys_gpio,
 };
@@ -492,7 +487,7 @@
 	.boot_params		= 0x80000100,
 	.map_io			= omap3_map_io,
 	.init_early		= omap35xx_init_early,
-	.init_irq		= omap3_stalker_init_irq,
+	.init_irq		= omap3_init_irq,
 	.init_machine		= omap3_stalker_init,
 	.timer			= &omap3_secure_timer,
 MACHINE_END