ARM: OMAP: Remove NEED_MACH_GPIO_H

Omap no longer needs this option, mach/gpio.h is
empty.

Also remove mach/irqs.h from gpio-omap.h and
include it directly from the related omap1
gpio init files.

Otherwise omap2+ build fails for MULTI_PLATFORM.

Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Jarkko Nikula <jarkko.nikula@bitmer.com>
Cc: Liam Girdwood <lrg@ti.com>
Cc: alsa-devel@alsa-project.org
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 73067ef..6207cf7 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -937,7 +937,6 @@
 	select CLKSRC_MMIO
 	select GENERIC_CLOCKEVENTS
 	select HAVE_CLK
-	select NEED_MACH_GPIO_H
 	help
 	  Support for TI's OMAP platform (OMAP1/2/3/4).
 
diff --git a/arch/arm/mach-omap1/gpio15xx.c b/arch/arm/mach-omap1/gpio15xx.c
index 98e6f39..02b3eb2 100644
--- a/arch/arm/mach-omap1/gpio15xx.c
+++ b/arch/arm/mach-omap1/gpio15xx.c
@@ -19,6 +19,8 @@
 #include <linux/gpio.h>
 #include <linux/platform_data/gpio-omap.h>
 
+#include <mach/irqs.h>
+
 #define OMAP1_MPUIO_VBASE		OMAP1_MPUIO_BASE
 #define OMAP1510_GPIO_BASE		0xFFFCE000
 
diff --git a/arch/arm/mach-omap1/gpio16xx.c b/arch/arm/mach-omap1/gpio16xx.c
index 33f4192..b9952a2 100644
--- a/arch/arm/mach-omap1/gpio16xx.c
+++ b/arch/arm/mach-omap1/gpio16xx.c
@@ -19,6 +19,8 @@
 #include <linux/gpio.h>
 #include <linux/platform_data/gpio-omap.h>
 
+#include <mach/irqs.h>
+
 #define OMAP1610_GPIO1_BASE		0xfffbe400
 #define OMAP1610_GPIO2_BASE		0xfffbec00
 #define OMAP1610_GPIO3_BASE		0xfffbb400
diff --git a/arch/arm/mach-omap1/gpio7xx.c b/arch/arm/mach-omap1/gpio7xx.c
index 958ce9a..f5819b2 100644
--- a/arch/arm/mach-omap1/gpio7xx.c
+++ b/arch/arm/mach-omap1/gpio7xx.c
@@ -19,6 +19,8 @@
 #include <linux/gpio.h>
 #include <linux/platform_data/gpio-omap.h>
 
+#include <mach/irqs.h>
+
 #define OMAP7XX_GPIO1_BASE		0xfffbc000
 #define OMAP7XX_GPIO2_BASE		0xfffbc800
 #define OMAP7XX_GPIO3_BASE		0xfffbd000
diff --git a/arch/arm/mach-omap1/include/mach/gpio.h b/arch/arm/mach-omap1/include/mach/gpio.h
deleted file mode 100644
index ebf86c0..0000000
--- a/arch/arm/mach-omap1/include/mach/gpio.h
+++ /dev/null
@@ -1,3 +0,0 @@
-/*
- * arch/arm/mach-omap1/include/mach/gpio.h
- */
diff --git a/arch/arm/mach-omap2/include/mach/gpio.h b/arch/arm/mach-omap2/include/mach/gpio.h
deleted file mode 100644
index 5621cc5..0000000
--- a/arch/arm/mach-omap2/include/mach/gpio.h
+++ /dev/null
@@ -1,3 +0,0 @@
-/*
- * arch/arm/mach-omap2/include/mach/gpio.h
- */