xtensa: add stacktrace support

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index a9bdb1c..13280f2 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -52,6 +52,9 @@
 source "init/Kconfig"
 source "kernel/Kconfig.freezer"
 
+config STACKTRACE_SUPPORT
+	def_bool y
+
 config MMU
 	def_bool n