ARM: HYP/non-sec: enable ARMV7_LPAE if HYP mode is supported

ARMV7_LPAE is required in order to enable the MMU in HYP mode.
And we really want to enable the MMU in HYP mode such that we can
enable the the caches.  Otherwise U-Boot code (such as the EFI
implementation) that runs in HYP mode will run at a snils pace.
Signed-off-by: NMark Kettenis <kettenis@openbsd.org>
Signed-off-by: NAlexander Graf <agraf@suse.de>

arch/arm/cpu/armv7/Kconfig

@@ -53,7 +53,7 @@ config ARMV7_PSCI_NR_CPUS
 config ARMV7_LPAE
 	bool "Use LPAE page table format" if EXPERT
 	depends on CPU_V7A
-	default n
+	default y if ARMV7_VIRT
 	---help---
 	Say Y here to use the long descriptor page table format. This is
 	required if U-Boot runs in HYP mode.