ARM: 7101/1: arm/tegra: Replace <mach/gpio.h> with <mach/gpio-tegra.h>

This will eventually allow <mach/gpio.h> to be deleted. This mirrors
LinusW's recent equivalent work on various other ARM platforms.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Conflicts:
	arch/arm/mach-tegra/include/mach/gpio.h
	arch/arm/mach-tegra/usb_phy.c
	drivers/mmc/host/sdhci-tegra.c