There are a few remaining drivers/staging/*/Makefile files that do not have SPDX identifiers in them. Add the correct GPL-2.0 identifier to them to make scanning tools happy.
Reviewed-by: Mukesh Ojha Signed-off-by: Greg Kroah-Hartman
# SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_PCI_MT7621) += pci-mt7621.o
