add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/kernel/Kconfig.freezer
..
..
@@ -1,2 +1,3 @@
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+# SPDX-License-Identifier: GPL-2.0-only
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 config FREEZER
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 	def_bool PM_SLEEP || CGROUP_FREEZER