add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/usr/.gitignore
..
..
@@ -1,10 +1,4 @@
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-#
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-# Generated files
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-#
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+# SPDX-License-Identifier: GPL-2.0-only
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2
 gen_init_cpio
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3
 initramfs_data.cpio
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-initramfs_data.cpio.gz
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-initramfs_data.cpio.bz2
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-initramfs_data.cpio.lzma
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-initramfs_list
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-include
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+/initramfs_inc_data