[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/Documentation/gpio/00-INDEX b/src/kernel/linux/v4.19/Documentation/gpio/00-INDEX
new file mode 100644
index 0000000..17e19a6
--- /dev/null
+++ b/src/kernel/linux/v4.19/Documentation/gpio/00-INDEX
@@ -0,0 +1,4 @@
+00-INDEX
+	- This file
+sysfs.txt
+	- Information about the GPIO sysfs interface