s3c24xx: unbreak uclibc by using armv4t instead of armv4; optimize for the right cpu

SVN-Revision: 14904

target/linux/s3c24xx/Makefile

@@ -10,7 +10,7 @@ ARCH:=arm
 BOARD:=s3c24xx
 BOARDNAME:=s3c24xx
 FEATURES:=jffs2
-CFLAGS:=-O2 -pipe -march=armv4 -mtune=arm9tdmi -funit-at-a-time
+CFLAGS:=-O2 -pipe -march=armv4t -mtune=arm920t -funit-at-a-time
 
 LINUX_VERSION:=2.6.28.7