reset: add Tegra186 reset driver

In Tegra186, on-SoC reset signals are manipulated using IPC requests to
the BPMP (Boot and Power Management Processor). This change implements a
driver that does that. It is unconditionally selected by CONFIG_TEGRA186
since virtually any Tegra186 build of U-Boot will need the feature.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index e8186d5..1eaf406 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -66,10 +66,12 @@
 	bool "Tegra186 family"
 	select CLK
 	select DM_MAILBOX
+	select DM_RESET
 	select MISC
 	select TEGRA186_BPMP
 	select TEGRA186_CLOCK
 	select TEGRA186_GPIO
+	select TEGRA186_RESET
 	select TEGRA_ARMV8_COMMON
 	select TEGRA_HSP
 	select TEGRA_IVC