add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/staging/mt7621-dma/Makefile
..
..
@@ -1,4 +1,4 @@
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-obj-$(CONFIG_DMA_RALINK) += ralink-gdma.o
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+# SPDX-License-Identifier: GPL-2.0
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 obj-$(CONFIG_MTK_HSDMA) += hsdma-mt7621.o
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 ccflags-y += -I$(srctree)/drivers/dma