Documentation: devicetree: bindings: Add BCM5301x binding

Document the binding used by the Broadcom BCM5301x (Northstar) SoC
random number generator.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
1 file changed