nl802154: fix cca mode wpan phy flag
nl802154: fix cca mode wpan phy flag

This patch fix the handling to call cca mode setting. If the phy isn't
flag then the driver doesn't support this setting.

Signed-off-by: Alexander Aring <d03dbcdedb9639e397df9b8578e8fc8274f4e6c4@gmail.com>
Reported-by: Varka Bhadram <d87a866b66cf1f04eab09125e0275d379e3910c1@gmail.com>
Signed-off-by: Marcel Holtmann <44592b4eea36663c86b994bb0ea99d15309c1c7d@holtmann.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs