add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/drivers/sh/clk/Makefile
..
..
@@ -1,3 +1,4 @@
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+# SPDX-License-Identifier: GPL-2.0-only
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 obj-y	:= core.o
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 obj-$(CONFIG_SH_CLK_CPG)	+= cpg.o