ARM: tegra: pinmux naming consistency fixes

Clean up the naming of pinmux-related objects:
* Refer to drive groups rather than pad groups to match the Linux kernel.
* Ensure all pinmux API types are prefixed with pmux_, values (defines)
  are prefixed with PMUX_, and functions prefixed with pinmux_.
* Modify a few type names to make their content clearer.
* Minimal changes to SoC-specific .h/.c files are made so the code still
  compiles. A separate per-SoC change will be made immediately following,
  in order to keep individual patch size down.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/arch/arm/include/asm/arch-tegra124/pinmux.h b/arch/arm/include/asm/arch-tegra124/pinmux.h
index 2c6f0d8..b3759067 100644
--- a/arch/arm/include/asm/arch-tegra124/pinmux.h
+++ b/arch/arm/include/asm/arch-tegra124/pinmux.h
@@ -209,10 +209,10 @@
 	PINGRP_USB_VBUS_EN2,
 	PINGRP_GPIO_PFF2,
 	PINGRP_DP_HPD,				/* last reg offset = 0x3430 */
-	PINGRP_COUNT,
+	PMUX_PINGRP_COUNT,
 };
 
-enum pdrive_pingrp {
+enum pmux_drvgrp {
 	PDRIVE_PINGROUP_AO1 = 0, /* offset 0x868 */
 	PDRIVE_PINGROUP_AO2,
 	PDRIVE_PINGROUP_AT1,
@@ -251,7 +251,7 @@
 	PDRIVE_PINGROUP_HVC,
 	PDRIVE_PINGROUP_SDIO4,
 	PDRIVE_PINGROUP_AO0,
-	PDRIVE_PINGROUP_COUNT,
+	PMUX_DRVGRP_COUNT,
 };
 
 /*
@@ -385,7 +385,7 @@
 
 #define TEGRA_PMX_HAS_PIN_IO_BIT_ETC
 #define TEGRA_PMX_HAS_RCV_SEL
-#define TEGRA_PMX_HAS_PADGRPS
+#define TEGRA_PMX_HAS_DRVGRPS
 #include <asm/arch-tegra/pinmux.h>
 
 #endif /* _TEGRA124_PINMUX_H_ */