ARM: soc: dependency warnings for errata

The PL310_ERRATA_753970 and ARM_ERRATA_764369 symbols only make sense
when the base features for them are enabled, so select them
conditionally in Kconfig to avoid warnings like:

warning: (UX500_SOC_COMMON) selects PL310_ERRATA_753970 which has unmet direct dependencies (CACHE_PL310)
warning: (ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC && UX500_SOC_COMMON) selects ARM_ERRATA_764369 which has unmet direct dependencies (CPU_V7 && SMP)

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 53d3d46..18755f1 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -5,9 +5,9 @@
 	default y
 	select ARM_GIC
 	select HAS_MTU
-	select PL310_ERRATA_753970
+	select PL310_ERRATA_753970 if CACHE_PL310
 	select ARM_ERRATA_754322
-	select ARM_ERRATA_764369
+	select ARM_ERRATA_764369 if SMP
 	select CACHE_L2X0
 	select PINCTRL
 	select PINCTRL_NOMADIK