UCM2: Qualcomm: sc8280xp: add Huawei MateBook E Go support

[whitelewi1-ctrl]

Summary

Add UCM configuration for the Huawei MateBook E Go (GK-W7X), an sc8280xp-based tablet with the same audio codec hardware as the Lenovo ThinkPad X13s (WCD938x + WSA8835 via SoundWire).

• Add HUAWEI-MateBook-E-Go.conf device configuration
• Update sc8280xp.conf to match HUAWEI DMI alongside existing LENOVO match
• Error message only emitted when no known vendor matches

Hardware details

Field	Value
Device	Huawei MateBook E Go (GK-W7X)
SoC	Snapdragon 8cx Gen 3 (sc8280xp)
Audio codec	WCD938x (headphones) + WSA8835 v2 (speakers)
Audio bus	SoundWire
board_vendor	HUAWEI
product_family	MateBook E

Test plan

• Tested on Huawei MateBook E Go with kernel 6.18.8 + Arch Linux
• Speaker playback, headphone playback, internal mic, headset mic all functional
• wpctl status shows correct device names (Speaker, Headphones, Internal microphones, Headset)

[perexg]

Not valid signed-off-by line.

[github-actions]

⚠️ Signed-off-by Validation Issues

The following commits have issues with their Signed-off-by lines:

• Commit 7758ddd: Invalid email in Signed-off-by: whitelewis@users.noreply.github.com

Please add a proper Signed-off-by: Your Name <your.email@example.com> line to each commit message.

Missing correct Signed-off-by line

This pull request has commits that are missing proper Signed-off-by lines or use invalid email addresses.

Requirements:

• Each commit must include at least one Signed-off-by: Your Name <your.email@example.com> line
• Commit author email must appear in at least one Signed-off-by line
• Commit committer email must appear in at least one Signed-off-by line (if not a GitHub bot)
• Multiple Signed-off-by lines are allowed for co-authored commits
• Anonymous GitHub emails (like @users.noreply.github.com) are not allowed
• The Signed-off-by line indicates that you agree to the Developer Certificate of Origin (DCO)

How to fix:

# Configure your git identity first (if needed):
git config user.name "Your Name"
git config user.email "your.email@example.com"

# For the last commit:
git commit --amend --signoff

# For multiple commits, use interactive rebase:
git rebase -i HEAD~N --signoff

# For co-authored commits, add multiple Signed-off-by lines manually:
git commit --amend
# Then add in the commit message:
# Signed-off-by: Author One <author1@example.com>
# Signed-off-by: Author Two <author2@example.com>

# Then force push:
git push --force-with-lease

Reference: Developer Certificate of Origin