ASoC: core: mark SND_SOC_BYTES_EXT as deprecated

Since we have SND_SOC_BYTES_TLV control to lets devices have
larger size data sent, we do not need SND_SOC_BYTES_EXT with 512
byte limitation so mark it deprecated
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

include/sound/soc.h

@@ -293,6 +293,9 @@
 		{.base = xbase, .num_regs = xregs,	      \
 		 .mask = xmask }) }
 
+/*
+ * SND_SOC_BYTES_EXT is deprecated, please USE SND_SOC_BYTES_TLV instead
+ */
 #define SND_SOC_BYTES_EXT(xname, xcount, xhandler_get, xhandler_put) \
 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 	.info = snd_soc_bytes_info_ext, \