ASoC: Intel: catpt: Drop redundant enum constant

CATPT_SSP_IFACE_LAST is being used only to calculate CATPT_SSP_COUNT.
Make CATPT_SSP_COUNT part of the enum directly and remove the redundant
constant.
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220403141647.1037173-1-cezary.rojewski@intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/catpt/messages.h

@@ -219,11 +219,9 @@ int catpt_ipc_free_stream(struct catpt_dev *cdev, u8 stream_hw_id);
 enum catpt_ssp_iface {
 	CATPT_SSP_IFACE_0 = 0,
 	CATPT_SSP_IFACE_1 = 1,
-	CATPT_SSP_IFACE_LAST = CATPT_SSP_IFACE_1,
+	CATPT_SSP_COUNT,
 };
 
-#define CATPT_SSP_COUNT (CATPT_SSP_IFACE_LAST + 1)
-
 enum catpt_mclk_frequency {
 	CATPT_MCLK_OFF = 0,
 	CATPT_MCLK_FREQ_6_MHZ = 1,