Change in coreboot[master]: mb/google/volteer/var/delbin: Add fw_config probe for ALC5682-VD & VS

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Anson Tseng, Frank Chu, Nick Vaccaro, Zhuohao Lee.
Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59557 )

Change subject: mb/google/volteer/var/delbin: Add fw_config probe for ALC5682-VD & VS
......................................................................

Patch Set 6:

(2 comments)

File src/mainboard/google/volteer/variants/delbin/overridetree.cb:

https://review.coreboot.org/c/coreboot/+/59557/comment/371dd19a_7897f1cb 
PS6, Line 148: device i2c 1a on end
suggestion: if you add an alias here, you can simplify the variant.c code quite a bit, I will show you. change this to:
`device i2c 1a alias audio_codec on end`

File src/mainboard/google/volteer/variants/delbin/variant.c:

https://review.coreboot.org/c/coreboot/+/59557/comment/dbdb0515_1422376d 
PS6, Line 7: 
           : extern struct chip_operations drivers_i2c_generic_ops;
           : static void audio_codec_update(void)
           : {
           : 	const struct device_path codec_path[] = {
           : 		{.type = DEVICE_PATH_PCI, .pci.devfn = PCH_DEVFN_I2C0},
           : 		{.type = DEVICE_PATH_I2C, .i2c.device = 0x1a}
           : 	};
           : 	const struct device *codec =
           : 		find_dev_nested_path(pci_root_bus(), codec_path, ARRAY_SIZE(codec_path));
           : 	struct drivers_i2c_generic_config *config;
           : 
           : 	if (!codec || (codec->chip_ops != &drivers_i2c_generic_ops) || !codec->chip_info)
           : 		return;
           : 	config = codec->chip_info;
           : 
           : 	if (fw_config_probe(FW_CONFIG(AUDIO_CODEC_SOURCE, AUDIO_CODEC_ALC5682)))
           : 		config->hid = "10EC5682";
           : 	else if (fw_config_probe(FW_CONFIG(AUDIO_CODEC_SOURCE, AUDIO_CODEC_ALC5682I_VS)))
           : 		config->hid = "RTL5682";
if you add the alias above, you should be able to simplify this to (untested):
```
static void audio_codec_update(void)
{
         const struct device *codec = DEV_PTR(audio_codec);
         struct drivers_i2c_generic_config *config;

config = codec->chip_info;
         if (fw_config_probe(FW_CONFIG(AUDIO_CODEC_SOURCE, AUDIO_CODEC_ALC5682)))
    	config->hid = "10EC5682";
     else
    	config->hid = "RTL5682";
```