Add ACPI and Idle states to the todo list

Also add a note that any bindings brought in from the Linux kernel
documentation (and presumably GPL licensed) must have Acked-by lines
from all of the original authors acknowledging the change of license.

Signed-off-by: Grant Likely <[email protected]>

Author: glikely

TODO

@@ -18,6 +18,12 @@ Other
   - CPU
   - GIC
   - SMMU
+  - PSCI & spin-table
+  - Idle states
 Appendix A - Source Format
   - Add include directive
 
+Note: When copying in bindings documented in the Linux kernel tree,
+you *must* contact the original authors,
+and get permission for relicensing to Apache v2.
+Patches for those bindings must have "Acked-by"s from the original author(s).