Allow wifi@1.0-service to open, read and write /dev/wlan

wifi@1.0-service opens and updates dev node to synchronize
with WLAN driver loading. Add required permissions to this
service to open, read and write /dev/wlan

Change-Id: I26af8545ec8324a114e6d85a0396ebed2bd69269
CRs-Fixed: 2054517
1 file changed