KVM: arm64: Depend on HAVE_KVM instead of OF

Select HAVE_KVM at all times on arm64, as the OF requirement is
always there (even in the case of an ACPI system, we still depend
on some of the OF infrastructure), and won't fo away.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Acked-by: Will Deacon <will@kernel.org>
[maz: Drop the "HAVE_KVM if OF" dependency, as OF is always there on arm64,
 new commit message]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210921222231.518092-3-seanjc@google.com

arch/arm64/Kconfig

@@ -186,6 +186,7 @@ config ARM64
 	select HAVE_GCC_PLUGINS
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS
 	select HAVE_IRQ_TIME_ACCOUNTING
+	select HAVE_KVM
 	select HAVE_NMI
 	select HAVE_PATA_PLATFORM
 	select HAVE_PERF_EVENTS

arch/arm64/kvm/Kconfig

@@ -20,7 +20,7 @@ if VIRTUALIZATION
 
 menuconfig KVM
 	bool "Kernel-based Virtual Machine (KVM) support"
-	depends on OF
+	depends on HAVE_KVM
 	select MMU_NOTIFIER
 	select PREEMPT_NOTIFIERS
 	select HAVE_KVM_CPU_RELAX_INTERCEPT