More debug info for linux

target/linux/Makefile.in.advanced

@@ -411,6 +411,7 @@ linux-status:
 	@echo TARGETS=$(TARGETS)
 	@echo LINUX26_TARGETS=$(LINUX26_TARGETS)
 	@echo LINUX26_HEADERS_PATCH_DIR=$(LINUX26_HEADERS_PATCH_DIR)
+	@echo LINUX_HEADERS_VERSION=$(LINUX_HEADERS_VERSION)
 	@echo LINUX26_BINLOC=$(LINUX26_BINLOC)
 	@echo LINUX26_FORMAT=$(LINUX26_FORMAT)
 	@echo LINUX26_KERNEL=$(LINUX26_KERNEL)