ARM: dt: tegra: fix length of pad control and mux registers

The reg property contains <base length> not <base last_offset>. Fix
the length values to be length not last_offset.

Cc: stable@vger.kernel.org
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

arch/arm/boot/dts/tegra30.dtsi

@@ -73,8 +73,8 @@
 
 	pinmux: pinmux {
 		compatible = "nvidia,tegra30-pinmux";
-		reg = <0x70000868 0xd0    /* Pad control registers */
-		       0x70003000 0x3e0>; /* Mux registers */
+		reg = <0x70000868 0xd4    /* Pad control registers */
+		       0x70003000 0x3e4>; /* Mux registers */
 	};
 
 	serial@70006000 {