[ALSA] Fix compile errors with older gcc

Fixed compile errors with older gcc for initialization of a union.
sound/pci/ca0106/ca0106_mixer.c: At top level:
sound/pci/ca0106/ca0106_mixer.c:499: unknown field 'p' specified in initializer
sound/pci/ca0106/ca0106_mixer.c:499: warning: missing braces around initializer
sound/pci/ca0106/ca0106_mixer.c:499: warning: (near initialization for 'snd_ca0106_volume_ctls[0].tlv')

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 077f1ce..043256c 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -507,7 +507,7 @@
 		.info = ad1986a_pcm_amp_vol_info,
 		.get = ad1986a_pcm_amp_vol_get,
 		.put = ad1986a_pcm_amp_vol_put,
-		.tlv.c = ad1986a_pcm_amp_tlv,
+		.tlv = { .c = ad1986a_pcm_amp_tlv },
 		.private_value = HDA_COMPOSE_AMP_VAL(AD1986A_FRONT_DAC, 3, 0, HDA_OUTPUT)
 	},
 	{