linux-phytec-ti

ARM: dts: fix use of bcm11351 enable method

bindings/arm/cpus.txt states that "enable-method" should be a
property of the "cpu" node rather than the "cpus" node.

Signed-off-by: Chris Brand <chris.brand@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>