[ALSA] PCM - fixed SNDRV_PCM_FORMAT_U24_BE silence constant

Reported by Timur Tabi <timur@freescale.com> .
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

sound/core/pcm_misc.c

@@ -75,7 +75,7 @@ static struct pcm_format_data pcm_formats[SNDRV_PCM_FORMAT_LAST+1] = {
 	},
 	[SNDRV_PCM_FORMAT_U24_BE] = {
 		.width = 24, .phys = 32, .le = 0, .signd = 0,
-		.silence = { 0x80, 0x00, 0x00 },
+		.silence = { 0x00, 0x80, 0x00, 0x00 },
 	},
 	[SNDRV_PCM_FORMAT_S32_LE] = {
 		.width = 32, .phys = 32, .le = 1, .signd = 1,