switch back to xscale mtune, marvell_f is unlikely to get upstreamed

SVN-Revision: 25707

target/linux/kirkwood/Makefile

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2009 OpenWrt.org
+# Copyright (C) 2009-2011 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -16,8 +16,6 @@ LINUX_VERSION:=2.6.35.11
 
 include $(INCLUDE_DIR)/target.mk
 
-CFLAGS:=-Os -pipe -march=armv5te -mtune=marvell-f -funit-at-a-time
-
 KERNELNAME:="uImage"
 
 DEFAULT_PACKAGES +=