drivers/at86rf231: change to PLL_ON to change address
drivers/at86rf231: print raw packet when DEBUG_ENABLED
drivers/at86rf231: frame_type has to be set by upper layers
examples/default: print 16bit addresses
shell/transceiver: set 16 bit addresses and frame type
Merge pull request #1934 from thomaseichinger/at86rf231_robustnes

drivers/at86rf231: improve deployment by default example