ASoC: SOF: sof-pci-dev: Update the ipc_type module parameter description

Clarify the description of the ipc_type module parameter and drop the Intel
CAVS in favor of IPC4.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230919104226.32239-3-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/sof-pci-dev.c

@@ -46,7 +46,7 @@ MODULE_PARM_DESC(sof_pci_debug, "SOF PCI debug options (0x0 all off)");
 
 static int sof_pci_ipc_type = -1;
 module_param_named(ipc_type, sof_pci_ipc_type, int, 0444);
-MODULE_PARM_DESC(ipc_type, "SOF IPC type (0): SOF, (1) Intel CAVS");
+MODULE_PARM_DESC(ipc_type, "Force SOF IPC type. 0 - IPC3, 1 - IPC4");
 
 static const char *sof_dmi_override_tplg_name;
 static bool sof_dmi_use_community_key;