ASoC: Intel: sof_es8336: remove hard-coded SSP selection

For some reason we open-coded the SSP selection and only supported
SSP0, 1 and 2. On ApolloLake platforms, the SSP5 can be used as well
for the ES8336 hardware link.

Remove hard-coded if/else code and align with same code already used
in the SOF driver.

BugLink: https://github.com/thesofproject/sof/issues/6015Reviewed-by: NRanjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: NBard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220725194909.145418-8-pierre-louis.bossart@linux.intel.comSigned-off-by: NMark Brown <broonie@kernel.org>

sound/soc/intel/boards/sof_es8336.c

@@ -604,18 +604,14 @@ static int sof_es8336_probe(struct platform_device *pdev)
 			/*
 			 * Set configuration based on platform NHLT.
 			 * In this machine driver, we can only support one SSP for the
-			 * ES8336 link, the else-if below are intentional.
+			 * ES8336 link.
 			 * In some cases multiple SSPs can be reported by NHLT, starting MSB-first
 			 * seems to pick the right connection.
 			 */
-			unsigned long ssp = 0;
-
-			if (mach->mach_params.i2s_link_mask & BIT(2))
-				ssp = SOF_ES8336_SSP_CODEC(2);
-			else if (mach->mach_params.i2s_link_mask & BIT(1))
-				ssp = SOF_ES8336_SSP_CODEC(1);
-			else  if (mach->mach_params.i2s_link_mask & BIT(0))
-				ssp = SOF_ES8336_SSP_CODEC(0);
+			unsigned long ssp;
+
+			/* fls returns 1-based results, SSPs indices are 0-based */
+			ssp = fls(mach->mach_params.i2s_link_mask) - 1;
 
 			quirk |= ssp;
 		}