ASoC: SOF: change type char to uint8_t in info.h

Use uint8_t to replace char in packed ABI structs
to have fixed length for struct.
Signed-off-by: Pan Xiuli <xiuli.pan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200415202816.934-12-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

include/sound/sof/info.h

@@ -111,9 +111,9 @@ struct sof_ipc_cc_version {
 	/* reserved for future use */
 	uint32_t reserved[4];
 
-	char name[16]; /* null terminated compiler name */
-	char optim[4]; /* null terminated compiler -O flag value */
-	char desc[]; /* null terminated compiler description */
+	uint8_t name[16]; /* null terminated compiler name */
+	uint8_t optim[4]; /* null terminated compiler -O flag value */
+	uint8_t desc[]; /* null terminated compiler description */
 } __packed;
 
 /* extended data: Probe setup */