correcting spelling error, yuv2rgb888_line was renamed to yuv2rgb24_line

git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@23472 b3059339-0415-0410-9bf9-f77b7e298cf2

internal_bfin.S

@@ -451,7 +451,7 @@ DEFUN(yuv2rgb24_line,MEM,
         (r7:4) = [sp++];
         unlink;
         rts;
-DEFUN_END(yuv2rgb888_line)
+DEFUN_END(yuv2rgb24_line)