ARM: 7675/1: amba: tegra-ahb: Fix build error w/ PM_SLEEP w/o PM_RUNTIME

Make this depend on CONFIG_PM. This protection is necessary to not
cause any build errors with any combination of PM features especially
when supporting a new SoC where each PM features are being enabled
one-by-one during its depelopment.
Signed-off-by: NHiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

drivers/amba/tegra-ahb.c

@@ -158,7 +158,7 @@ int tegra_ahb_enable_smmu(struct device_node *dn)
 EXPORT_SYMBOL(tegra_ahb_enable_smmu);
 #endif
 
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
 static int tegra_ahb_suspend(struct device *dev)
 {
 	int i;