common: Make livepatch dependent on HAS_VMAP

While technically possible to support live-patching on MPU systems, today
the code depends on vmap. However, this relationship is not reflected in
Kconfig and allows to enable live-patching on MPU, where HAS_VMAP is not
selected.

Signed-off-by: Michal Orzel <michal.orzel@amd.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>

xen/common/Kconfig

@@ -477,7 +477,7 @@ config CRYPTO
 config LIVEPATCH
 	bool "Live patching support"
 	default X86
-	depends on "$(XEN_HAS_BUILD_ID)" = "y" && SYSCTL
+	depends on "$(XEN_HAS_BUILD_ID)" = "y" && SYSCTL && HAS_VMAP
 	select CC_SPLIT_SECTIONS
 	help
 	  Allows a running Xen hypervisor to be dynamically patched using