ALSA: usb-audio: Initialize status1 to fix uninitialized symbol errors

Initialize 'status1' with a default value to resolve the static analysis
smatch reported error "uninitialized symbol 'status1'".
The 'status1' variable is used to create a buff using "kmemdup".
So, ensure to initialize the value before it is read.

Suggested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: HariKrishna Sagala <hariconscious@gmail.com>
Link: https://patch.msgid.link/20251204052201.16286-3-hariconscious@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Author: hkrishna-git

sound/usb/mixer_quirks.c

@@ -2545,6 +2545,7 @@ static int snd_rme_get_status1(struct snd_kcontrol *kcontrol,
 	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
 	struct snd_usb_audio *chip = list->mixer->chip;
 
+	*status1 = 0;
 	CLASS(snd_usb_lock, pm)(chip);
 	if (pm.err < 0)
 		return pm.err;