Add 7U support for creek70

[spbgzh]

Description

QMK Pull Request

qmk/qmk_firmware#19789

Checklist

• The VIA support for this keyboard is MERGED in QMK master already (MANDATORY)
• The VIA definition follows the guide here: https://caniusevia.com/docs/layouts
• I have a V3 JSON version for this keyboard definition.(MANDATORY)
• I have tested this keyboard definition using VIA's "Design" tab.
• I have tested this keyboard definition with firmware on a device.
• I have assigned alpha keys and modifier keys with the correct colors.
• The Vendor ID is not 0xFEED

[spbgzh]

It dont need to change anything in fireware because, it use same postions.

[Xelus22]

Why are you renaming Creek 70 to Epiphany 70? You will need to submit a new keyboard to QMK if you are adding a new keyboard.

[spbgzh]

I want to change name of keyboard, I will make a new PR to change keyboard's name @Xelus22