Documentaion: devicetree: NFC: add clocks and interupt naming

When we upgraded to the 3.10 kernel we started configuring the core
clock and naming our interrupt in the device tree.

Change-Id: If05aa670bf2d6033c1c97f51be991594ae66e4c6
Signed-off-by: Houston Hoffman <hhoffman@codeaurora.org>