Add support for Gigabyte Aorus Radeon RX 6900 XT Extreme Waterforce WB

Joachimrequested to merge
1nf3sT/OpenRGB:gigabyte_extreme_waterforce_rx6900xt into master

Add Controller detection, PCI Vendor and Device ID constants for Gigabyte Aorus Radeon RX 6900 XT Extreme Waterforce WB

Edited by Joachim

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