examples/rpl-border-router: Fix two minor warnings.

 - Remove unused variable i in generate_routes.
 - Add cast to unsigned long for printf(..%lu..) in generate_routes.

Signed-off-by: Joakim Gebart <joakim.gebart@eistec.se>
[cooja/mspsim] Msp802154Radio: Fix maximum power indicator

Previously getOutputPowerIndicatorMax() returned the fixed value 31.
This is valid for e.g. the mspsim CC2420 radio implementation but not for the CC2520 implementation where the maximum returned value is 9.

Thus to fix transmission range issues (for example for Wismote node) the maxium value provided by the radio implementaiton must be used.
Merge pull request #797 from gebart/rpl-border-router-warnings

examples/rpl-border-router: Fix two minor warnings.
Merge pull request #799 from ejoerns/pull-req/cooja-mspsim-radiofix

[Cooja/MSPSim] Msp802154Radio: Fix maximum power indicator
[dev/rf23x] Generated dev/rf23x by moving/deleting some files
[dev/rf23x] Created globally includable rf23x_registermap.h
[dev/rf23x] renamed rf230* -> rf23x*
[dev/rf23x] fixed usage in apps/ and code/
[dev/rf23x] fixed usage in examples/
[dev/rf23x] fixed usage in platform/avr-atmega128rfa1/
[dev/rf23x] fixed usage in platform/avr-raven/
[dev/rf23x] fixed usage in platform/avr-ravenlcd/
[dev/rf23x] fixed usage in platform/avr-ravenusb/
[dev/rf23x] fixed usage in platform/avr-rcb/
[dev/rf23x] fixed usage in platform/avr-zigbit/