ARM: tegra: fix multiple asm/hardware/gic.h inclusion

arch/arm/mach-tegra/board-dt-tegra20.c: included 'asm/hardware/gic.h'
twice remove the duplicates.
Signed-off-by: NDanny Kukawka <danny.kukawka@bisect.de>
[swarren: rewrote commit subject]
Signed-off-by: NStephen Warren <swarren@nvidia.com>

arch/arm/mach-tegra/board-dt-tegra20.c

@@ -37,7 +37,6 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
 #include <asm/setup.h>
-#include <asm/hardware/gic.h>
 
 #include <mach/iomap.h>
 #include <mach/irqs.h>