There are a few remaining drivers/staging/*/Kconfig files that do not
have SPDX identifiers in them. Add the correct GPL-2.0 identifier to
them to make scanning tools happy.
# SPDX-License-Identifier: GPL-2.0
config PCI_MT7621_PHY
tristate "MediaTek MT7621 PCI PHY Driver"
depends on RALINK && OF
select GENERIC_PHY
help
Say 'Y' here to add support for MediaTek MT7621 PCI PHY driver,
