Per e-mail from Sergei Shtylyov, the DT spec dictates it should be
"okay" (although "ok" is also recognized).  Thus, changing all "ok" to
"okay" in NS2 device tree files
Suggested-by: NSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: NJon Mason <jon.mason@broadcom.com>
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>