ASoC: soc.h: Add SOC_SINGLE_S_EXT_TLV macro

Add a SOC_SINGLE_S_EXT_TLV macro as a convenience wrapper
around SOC_DOUBLE_R_S_EXT_TLV for mono volume controls.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220425125012.3044919-3-rf@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>

include/sound/soc.h

@@ -293,6 +293,12 @@
 	.get = xhandler_get, .put = xhandler_put, \
 	.private_value = SOC_DOUBLE_R_S_VALUE(reg_left, reg_right, xshift, \
 					      xmin, xmax, xsign_bit, xinvert) }
+#define SOC_SINGLE_S_EXT_TLV(xname, xreg, xshift, xmin, xmax, \
+			     xsign_bit, xinvert, xhandler_get, xhandler_put, \
+			     tlv_array) \
+	SOC_DOUBLE_R_S_EXT_TLV(xname, xreg, xreg, xshift, xmin, xmax, \
+			       xsign_bit, xinvert, xhandler_get, xhandler_put, \
+			       tlv_array)
 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 	.info = snd_soc_info_bool_ext, \