pinctrl: tegra: add Tegra K1 support

Tegra 124 is fully compatible with existing Tegra pincontrol
driver, but it needs a specific MIPI PAD control pinconfig.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
diff --git a/arch/arm/include/asm/arch-tegra124/pinmux.h b/arch/arm/include/asm/arch-tegra124/pinmux.h
index 3aba17d..fbe15fc 100644
--- a/arch/arm/include/asm/arch-tegra124/pinmux.h
+++ b/arch/arm/include/asm/arch-tegra124/pinmux.h
@@ -578,6 +578,10 @@
 	[PMUX_DRVGRP_AO4] = "ao4",
 };
 
+static const char * const tegra_pinctrl_to_mipipadgrp[] = {
+	[PMUX_MIPIPADCTRLGRP_DSI_B] = "mipi_pad_ctrl_dsi_b",
+};
+
 static const char * const tegra_pinctrl_to_func[] = {
 	[PMUX_FUNC_DEFAULT] = "default",
 	[PMUX_FUNC_BLINK] = "blink",