ASoC: ux500: Standardize ASoC menu

Current Kconfig menu at [ALSA for SoC audio support] has no rules.
So, some venders are using menu style, some venders are listed each drivers
on top page, etc. It is difficult to find target vender and/or drivers
because it is very random.

Let's standardize ASoC menu

Signed-off-by: Kuninori Morimoto <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/ux500/Kconfig

···
 # Ux500 SoC audio configuration
 #
 menuconfig SND_SOC_UX500
-	tristate "SoC Audio support for Ux500 platform"
+	tristate "Ux500"
 	depends on SND_SOC
 	depends on MFD_DB8500_PRCMU
 	help