mb/lenovo/t480: Fix headphone jack

Add additional register configuration for the Realtek ALC257 audio
codec on the Lenovo ThinkPad T480. This includes:

- Hidden register SW reset sequence
- ClassD 2W amplifier configuration
- Jack detection (JD1) setup for headphone port
- Silence data mode threshold setting at -84dB

Shamelessly taken from google/brya/variants/pujjolo/hda_verb.c

Change-Id: Ib77138d782ceb9feeaef82935bc1c0d5c3066183
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90023
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>

src/mainboard/lenovo/sklkbl_thinkpad/variants/t480/hda_verb.c

@@ -5,7 +5,7 @@
 const u32 cim_verb_data[] = {
 	0x10ec0257, // Vendor/Device ID: Realtek ALC257
 	0x17aa225d, // Subsystem ID
-	11,
+	18,
 	AZALIA_SUBVENDOR(0, 0x17aa225d),
 
 	AZALIA_PIN_CFG(0, 0x12, AZALIA_PIN_DESC(
@@ -51,6 +51,41 @@ const u32 cim_verb_data[] = {
 		1, 15
 	)),
 
+	//==========Widget node 0x20 - 0 :Hidden register SW reset
+	0x0205001A,
+	0x0204C003,
+	0x0205001A,
+	0x0204C003,
+	0x05850000,
+	0x0584F880,
+	0x05850000,
+	0x0584F880,
+	//==========Widget node 0x20 - 1 : ClassD 2W
+	0x02050038,
+	0x02048981,
+	0x0205001B,
+	0x02040A4B,
+	//==========Widget node 0x20 - 2
+	0x0205003C,
+	0x02043154,
+	0x0205003C,
+	0x02043114,
+	//==========Widget node 0x20 - 3 :
+	0x02050046,
+	0x02040004,
+	0x05750003,
+	0x057409A3,
+	//==========Widget node 0x20 - 4 :JD1 enable 1JD port for HP JD
+	0x02050009,
+	0x02046003,
+	0x0205000A,
+	0x02047770,
+	//==========Widget node 0x20 - 5 : Silence data mode Threshold (-84dB)
+	0x02050037,
+	0x0204FE15,
+	0x02050030,
+	0x02049004,
+
 	0x8086280b, // Vendor/Device ID: Intel Kabylake HDMI
 	0x80860101, // Subsystem ID
 	4,