ARM: tegra: pinmux: account for different drivegroup base registers

Tegra210 starts its drive group registers at a different offset from the
APB MISC register block that other SoCs. Update the code to handle this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/arch/arm/mach-tegra/pinmux-common.c b/arch/arm/mach-tegra/pinmux-common.c
index b4ed153..9bf3086 100644
--- a/arch/arm/mach-tegra/pinmux-common.c
+++ b/arch/arm/mach-tegra/pinmux-common.c
@@ -99,7 +99,7 @@
 
 #endif /* CONFIG_TEGRA20 */
 
-#define DRV_REG(group)	_R(0x868 + ((group) * 4))
+#define DRV_REG(group)	_R(TEGRA_PMX_SOC_DRV_GROUP_BASE_REG + ((group) * 4))
 
 /*
  * We could force arch-tegraNN/pinmux.h to define all of these. However,