microblaze: preliminary enabling for LATENCYTOP support in Kconfig

Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 5ba4dcd..57eeaa6 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -63,6 +63,9 @@
 config LOCKDEP_SUPPORT
 	def_bool y
 
+config HAVE_LATENCYTOP_SUPPORT
+	def_bool y
+
 config PCI
 	def_bool n