ALSA: pci/rme9652/hdspm: remove always true condition

Fix W=1 warning:

sound/pci/rme9652/hdspm.c: In function ‘hdspm_autosync_ref’:
sound/pci/rme9652/hdspm.c:3030:16: warning: comparison of unsigned
expression >= 0 is always true [-Wtype-limits]
 3030 |   if ((syncref >= HDSPM_AES32_AUTOSYNC_FROM_WORD) &&
      |                ^~
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200702193604.169059-16-pierre-louis.bossart@linux.intel.comSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/rme9652/hdspm.c

@@ -3027,8 +3027,8 @@ static int hdspm_autosync_ref(struct hdspm *hdspm)
 
 		unsigned int status = hdspm_read(hdspm, HDSPM_statusRegister);
 		unsigned int syncref = (status >> HDSPM_AES32_syncref_bit) & 0xF;
-		if ((syncref >= HDSPM_AES32_AUTOSYNC_FROM_WORD) &&
-				(syncref <= HDSPM_AES32_AUTOSYNC_FROM_SYNC_IN)) {
+		/* syncref >= HDSPM_AES32_AUTOSYNC_FROM_WORD is always true */
+		if (syncref <= HDSPM_AES32_AUTOSYNC_FROM_SYNC_IN) {
 			return syncref;
 		}
 		return HDSPM_AES32_AUTOSYNC_FROM_NONE;