[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/Documentation/acpi/dsdt-override.txt b/src/kernel/linux/v4.19/Documentation/acpi/dsdt-override.txt
new file mode 100644
index 0000000..784841c
--- /dev/null
+++ b/src/kernel/linux/v4.19/Documentation/acpi/dsdt-override.txt
@@ -0,0 +1,7 @@
+Linux supports a method of overriding the BIOS DSDT:
+
+CONFIG_ACPI_CUSTOM_DSDT builds the image into the kernel.
+
+When to use this method is described in detail on the
+Linux/ACPI home page:
+https://01.org/linux-acpi/documentation/overriding-dsdt