Changes

nokia_site: Change the LAPD N200 counter for RSL

This commit raises the LAPD RSL N200 (retransmission) counter for
Nokia RSL links. The reason is that the readiness of the TRX is not
signalled (OML) nor can be queried from the BTS in any way, and on
larger macro setups the TRX reset takes ~15 seconds, thus the RSL
bootstrap times out before the TRX becomes ready.

This issue presents itself with UltraSite types, does not affect
InSite or MetroSite (the later two are "integrated TRX" units).
More modern macro setups like the Flexi or Multiradio are likely
affected.

Runtime tested with InSite and UltraSite (multi-TRX).

Change-Id: Ie4bb804ea636eba2182586db13a625c5933eff31