Ethernet lib: slightly refactored SPI_ETHERNET_SETTING build
Ethernet lib: slightly refactored SPI_ETHERNET_SETTING build

Prepare for next refactoring.
Doesn't change any behaviour.

jaimemaretoli/Arduino,lukeWal/Arduino,xxxajk/Arduino-1,ashwin713/Arduino,ccoenen/Arduino,tbowmo/Arduino,gberl001/Arduino,Chris--A/Arduino,eggfly/arduino,ikbelkirasan/Arduino,Gourav2906/Arduino,ForestNymph/Arduino_sources,zederson/Arduino,bigjosh/Arduino,tbowmo/Arduino,pdNor/Arduino,chaveiro/Arduino,bsmr-arduino/Arduino,cscenter/Arduino,jabezGit/Arduino,KlaasDeNys/Arduino,PaoloP74/Arduino,majenkotech/Arduino,tbowmo/Arduino,bigjosh/Arduino,ForestNymph/Arduino_sources,PeterVH/Arduino,PeterVH/Arduino,henningpohl/Arduino,superboonie/Arduino,jaimemaretoli/Arduino,henningpohl/Arduino,jaimemaretoli/Arduino,gestrem/Arduino,ikbelkirasan/Arduino,tommyli2014/Arduino,tskurauskas/Arduino,eggfly/arduino,superboonie/Arduino,tskurauskas/Arduino,byran/Arduino,pdNor/Arduino,tomkrus007/Arduino,chaveiro/Arduino,jabezGit/Arduino,PeterVH/Arduino,stickbreaker/Arduino,eddyst/Arduino-SourceCode,talhaburak/Arduino,tomkrus007/Arduino,KlaasDeNys/Arduino,ari-analytics/Arduino,chaveiro/Arduino,niggor/Arduino_cc,ikbelkirasan/Arduino,ari-analytics/Arduino,eggfly/arduino,jabezGit/Arduino,ricklon/Arduino,garci66/Arduino,ntruchsess/Arduino-1,ForestNymph/Arduino_sources,ikbelkirasan/Arduino,snargledorf/Arduino,Chris--A/Arduino,steamboating/Arduino,ccoenen/Arduino,byran/Arduino,gestrem/Arduino,me-no-dev/Arduino-1,ashwin713/Arduino,superboonie/Arduino,gberl001/Arduino,wayoda/Arduino,vbextreme/Arduino,NaSymbol/Arduino,xxxajk/Arduino-1,ntruchsess/Arduino-1,tbowmo/Arduino,wilhelmryan/Arduino,gberl001/Arduino,nandojve/Arduino,ashwin713/Arduino,adamkh/Arduino,ari-analytics/Arduino,ntruchsess/Arduino-1,garci66/Arduino,laylthe/Arduino,tommyli2014/Arduino,arunkuttiyara/Arduino,byran/Arduino,niggor/Arduino_cc,jmgonzalez00449/Arduino,stickbreaker/Arduino,ForestNymph/Arduino_sources,jaimemaretoli/Arduino,ikbelkirasan/Arduino,NaSymbol/Arduino,jmgonzalez00449/Arduino,talhaburak/Arduino,tommyli2014/Arduino,tommyli2014/Arduino,bigjosh/Arduino,wilhelmryan/Arduino,andyvand/Arduino-1,ForestNymph/Arduino_sources,arunkuttiyara/Arduino,nandojve/Arduino,eddyst/Arduino-SourceCode,pdNor/Arduino,stevemayhew/Arduino,wayoda/Arduino,NicoHood/Arduino,wilhelmryan/Arduino,cscenter/Arduino,ogferreiro/Arduino,zaiexx/Arduino,PaoloP74/Arduino,PeterVH/Arduino,xxxajk/Arduino-1,bsmr-arduino/Arduino,eduardocasarin/Arduino,Gourav2906/Arduino,niggor/Arduino_cc,snargledorf/Arduino,zaiexx/Arduino,acosinwork/Arduino,kidswong999/Arduino,zaiexx/Arduino,NicoHood/Arduino,stickbreaker/Arduino,niggor/Arduino_cc,eddyst/Arduino-SourceCode,laylthe/Arduino,ccoenen/Arduino,ntruchsess/Arduino-1,eggfly/arduino,arunkuttiyara/Arduino,jabezGit/Arduino,talhaburak/Arduino,lulufei/Arduino,ntruchsess/Arduino-1,wayoda/Arduino,bsmr-arduino/Arduino,superboonie/Arduino,kidswong999/Arduino,ari-analytics/Arduino,stickbreaker/Arduino,jmgonzalez00449/Arduino,cscenter/Arduino,ikbelkirasan/Arduino,shannonshsu/Arduino,tbowmo/Arduino,bigjosh/Arduino,chaveiro/Arduino,niggor/Arduino_cc,laylthe/Arduino,ogferreiro/Arduino,steamboating/Arduino,Gourav2906/Arduino,ricklon/Arduino,steamboating/Arduino,ogferreiro/Arduino,cscenter/Arduino,ThoughtWorksIoTGurgaon/Arduino,gberl001/Arduino,KlaasDeNys/Arduino,ari-analytics/Arduino,eddyst/Arduino-SourceCode,HCastano/Arduino,NaSymbol/Arduino,zederson/Arduino,ThoughtWorksIoTGurgaon/Arduino,ogferreiro/Arduino,talhaburak/Arduino,arunkuttiyara/Arduino,zaiexx/Arduino,niggor/Arduino_cc,xxxajk/Arduino-1,lukeWal/Arduino,stickbreaker/Arduino,tskurauskas/Arduino,jamesrob4/Arduino,andyvand/Arduino-1,eddyst/Arduino-SourceCode,cscenter/Arduino,HCastano/Arduino,jmgonzalez00449/Arduino,gberl001/Arduino,snargledorf/Arduino,NaSymbol/Arduino,eduardocasarin/Arduino,lukeWal/Arduino,adamkh/Arduino,NaSymbol/Arduino,acosinwork/Arduino,gberl001/Arduino,Gourav2906/Arduino,ThoughtWorksIoTGurgaon/Arduino,henningpohl/Arduino,Gourav2906/Arduino,KlaasDeNys/Arduino,ntruchsess/Arduino-1,majenkotech/Arduino,ThoughtWorksIoTGurgaon/Arduino,acosinwork/Arduino,xxxajk/Arduino-1,gestrem/Arduino,stickbreaker/Arduino,bsmr-arduino/Arduino,lukeWal/Arduino,karlitxo/Arduino,jabezGit/Arduino,ogferreiro/Arduino,vbextreme/Arduino,tommyli2014/Arduino,steamboating/Arduino,shannonshsu/Arduino,andyvand/Arduino-1,jamesrob4/Arduino,lulufei/Arduino,chaveiro/Arduino,ccoenen/Arduino,Chris--A/Arduino,garci66/Arduino,stevemayhew/Arduino,niggor/Arduino_cc,byran/Arduino,tommyli2014/Arduino,ccoenen/Arduino,NaSymbol/Arduino,NicoHood/Arduino,garci66/Arduino,HCastano/Arduino,stevemayhew/Arduino,karlitxo/Arduino,wilhelmryan/Arduino,bigjosh/Arduino,stickbreaker/Arduino,ntruchsess/Arduino-1,zederson/Arduino,jaimemaretoli/Arduino,wayoda/Arduino,karlitxo/Arduino,jmgonzalez00449/Arduino,Chris--A/Arduino,andyvand/Arduino-1,HCastano/Arduino,NicoHood/Arduino,henningpohl/Arduino,zederson/Arduino,ogferreiro/Arduino,me-no-dev/Arduino-1,ThoughtWorksIoTGurgaon/Arduino,ashwin713/Arduino,garci66/Arduino,pdNor/Arduino,laylthe/Arduino,majenkotech/Arduino,ThoughtWorksIoTGurgaon/Arduino,tskurauskas/Arduino,niggor/Arduino_cc,pdNor/Arduino,KlaasDeNys/Arduino,ricklon/Ardui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