override default i486 CFLAGS, produce smaller executables for these systems

SVN-Revision: 15374

target/linux/rdc/Makefile

@@ -10,6 +10,7 @@ ARCH:=i386
 BOARD:=rdc
 BOARDNAME:=RDC 321x
 FEATURES:=squashfs jffs2 pci usb
+CFLAGS:=-Os -pipe -march=i486 -funit-at-a-time
 
 LINUX_VERSION:=2.6.24.7