lavc/adpcm_data: fix const misplacement

Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>

libavcodec/adpcm_data.c

@@ -47,7 +47,7 @@ static const int8_t adpcm_index_table5[32] = {
     -1, -1, -1, -1, -1, -1, -1, -1, 1, 2, 4, 6, 8, 10, 13, 16,
 };
 
-const int8_t const *ff_adpcm_index_tables[4] = {
+const int8_t * const ff_adpcm_index_tables[4] = {
     &adpcm_index_table2[0],
     &adpcm_index_table3[0],
     &ff_adpcm_index_table[0],

libavcodec/adpcm_data.h

@@ -31,7 +31,7 @@
 static const uint8_t ff_adpcm_ima_block_sizes[4]   = {  4, 12, 4, 20 };
 static const uint8_t ff_adpcm_ima_block_samples[4] = { 16, 32, 8, 32 };
 
-extern const int8_t const *ff_adpcm_index_tables[4];
+extern const int8_t * const ff_adpcm_index_tables[4];
 extern const int8_t  ff_adpcm_index_table[16];
 extern const int16_t ff_adpcm_step_table[89];
 extern const int16_t ff_adpcm_oki_step_table[49];