Copile fix: missing libswscale part of ffmpeg r9322 TARGET_ARCH -> ARCH change.

Originally committed as revision 23562 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

libswscale/Makefile

@@ -12,8 +12,8 @@ OBJS= swscale.o rgb2rgb.o
 OBJS-$(TARGET_ALTIVEC)     +=  yuv2rgb_altivec.o
 OBJS-$(CONFIG_GPL)         +=  yuv2rgb.o
 
-OBJS-$(TARGET_ARCH_BFIN)     +=  yuv2rgb_bfin.o
-ASM_OBJS-$(TARGET_ARCH_BFIN) += internal_bfin.o
+OBJS-$(ARCH_BFIN)          +=  yuv2rgb_bfin.o
+ASM_OBJS-$(ARCH_BFIN)      += internal_bfin.o
 
 HEADERS = swscale.h rgb2rgb.h