soc/tegra: pmc: Add I/O pad table for Tegra234

Add I/O pad table for Tegra234 to allow configuring DPD mode and
switching the pins to 1.8V or 3.3V as needed.

On Tegra234, DPD registers are reorganized such that there is a DPD_REQ
register and a DPD_STATUS register per pad group. Update the PMC driver
accordingly.

While at it, use the generated tables from tegra-pinmux-scripts to make
the formatting of these tables more consistent.
Signed-off-by: Petlozu Pravareshwar <petlozup@nvidia.com>
[treding@nvidia.com: generate tables from tegra-pinmux-scripts]
Signed-off-by: Thierry Reding <treding@nvidia.com>

include/soc/tegra/pmc.h

@@ -118,9 +118,9 @@ enum tegra_io_pad {
 	TEGRA_IO_PAD_PEX_CLK_2,
 	TEGRA_IO_PAD_PEX_CNTRL,
 	TEGRA_IO_PAD_PEX_CTL2,
-	TEGRA_IO_PAD_PEX_L0_RST_N,
-	TEGRA_IO_PAD_PEX_L1_RST_N,
-	TEGRA_IO_PAD_PEX_L5_RST_N,
+	TEGRA_IO_PAD_PEX_L0_RST,
+	TEGRA_IO_PAD_PEX_L1_RST,
+	TEGRA_IO_PAD_PEX_L5_RST,
 	TEGRA_IO_PAD_PWR_CTL,
 	TEGRA_IO_PAD_SDMMC1,
 	TEGRA_IO_PAD_SDMMC1_HV,