cdxl: swap CHUNKY and BYTE_PLANAR

This is how it is defined in Amiga Developer CD from year 1992 and
is consistent with files created with ADPro.
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/cdxl.c

@@ -25,8 +25,8 @@
 #include "get_bits.h"
 
 #define BIT_PLANAR   0x00
-#define BYTE_PLANAR  0x20
-#define CHUNKY       0x40
+#define CHUNKY       0x20
+#define BYTE_PLANAR  0x40
 #define BIT_LINE     0x80
 #define BYTE_LINE    0xC0