[PATCH] soc: Convert to using %pOFn instead of device_node.name

On Mon, Aug 27, 2018 at 8:57 PM Rob Herring [off-list ref] wrote:

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Please forgive my ignorance, but what is this format specifier do
exactly?   I cannot find anything listed in the printf specification
matching this.  Is this something newly introduced?

Leo