soc/tegra: pmc: Enable PMIC wake event on Tegra210

The PMIC wake event can be used to bring the system out of suspend based
on certain events happening on the PMIC (such as an RTC alarm).
Signed-off-by: NJon Hunter <jonathanh@nvidia.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

drivers/soc/tegra/pmc.c

@@ -3063,6 +3063,7 @@ static const struct pinctrl_pin_desc tegra210_pin_descs[] = {
 
 static const struct tegra_wake_event tegra210_wake_events[] = {
 	TEGRA_WAKE_IRQ("rtc", 16, 2),
+	TEGRA_WAKE_IRQ("pmu", 51, 86),
 };
 
 static const struct tegra_pmc_soc tegra210_pmc_soc = {