ASoC: google: 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/google/Kconfig

···
 # SPDX-License-Identifier: GPL-2.0-only
+menu "Google"
 
 config SND_SOC_CHV3_I2S
 	tristate "Google Chameleon v3 I2S device"
 	help
 	  Enable support for the Google Chameleon v3 I2S device.
+
+endmenu