build: Check for 128 bit integer support
build: Check for 128 bit integer support

Used in MuHash3072 implementation.

Co-authored-by: Pieter Wuille <c1fe694431f9243042d0eb4561d822ec1200493d@gmail.com>

yenliangl/bitcoin,bitcoinsSG/bitcoin,jamesob/bitcoin,rnicoll/bitcoin,bitcoinknots/bitcoin,sstone/bitcoin,pstratem/bitcoin,mm-s/bitcoin,mm-s/bitcoin,namecoin/namecoin-core,instagibbs/bitcoin,practicalswift/bitcoin,fujicoin/fujicoin,tecnovert/particl-core,pataquets/namecoin-core,qtumproject/qtum,GroestlCoin/bitcoin,andreaskern/bitcoin,JeremyRubin/bitcoin,kallewoof/bitcoin,apoelstra/bitcoin,sstone/bitcoin,andreaskern/bitcoin,pstratem/bitcoin,bitcoinsSG/bitcoin,jambolo/bitcoin,mm-s/bitcoin,jambolo/bitcoin,namecoin/namecoin-core,particl/particl-core,AkioNak/bitcoin,mm-s/bitcoin,qtumproject/qtum,sipsorcery/bitcoin,apoelstra/bitcoin,GroestlCoin/GroestlCoin,domob1812/namecore,kallewoof/bitcoin,jambolo/bitcoin,namecoin/namecoin-core,fanquake/bitcoin,cdecker/bitcoin,namecoin/namecore,ajtowns/bitcoin,bitcoinsSG/bitcoin,GroestlCoin/GroestlCoin,Xekyo/bitcoin,jamesob/bitcoin,mruddy/bitcoin,lateminer/bitcoin,pataquets/namecoin-core,ElementsProject/elements,ajtowns/bitcoin,cdecker/bitcoin,EthanHeilman/bitcoin,anditto/bitcoin,MarcoFalke/bitcoin,MeshCollider/bitcoin,qtumproject/qtum,pstratem/bitcoin,jambolo/bitcoin,MeshCollider/bitcoin,ElementsProject/elements,dscotese/bitcoin,jnewbery/bitcoin,GroestlCoin/bitcoin,anditto/bitcoin,bitcoin/bitcoin,domob1812/bitcoin,ElementsProject/elements,tecnovert/particl-core,bitcoin/bitcoin,fanquake/bitcoin,cdecker/bitcoin,cdecker/bitcoin,MeshCollider/bitcoin,apoelstra/bitcoin,qtumproject/qtum,jlopp/statoshi,n1bor/bitcoin,MeshCollider/bitcoin,prusnak/bitcoin,yenliangl/bitcoin,EthanHeilman/bitcoin,bitcoinsSG/bitcoin,bitcoinknots/bitcoin,domob1812/namecore,GroestlCoin/bitcoin,GroestlCoin/GroestlCoin,rnicoll/bitcoin,mruddy/bitcoin,mm-s/bitcoin,Xekyo/bitcoin,sipsorcery/bitcoin,anditto/bitcoin,kallewoof/bitcoin,GroestlCoin/bitcoin,dscotese/bitcoin,sstone/bitcoin,ajtowns/bitcoin,MarcoFalke/bitcoin,pstratem/bitcoin,jambolo/bitcoin,practicalswift/bitcoin,JeremyRubin/bitcoin,sipsorcery/bitcoin,JeremyRubin/bitcoin,sipsorcery/bitcoin,particl/particl-core,ElementsProject/elements,JeremyRubin/bitcoin,andreaskern/bitcoin,instagibbs/bitcoin,pataquets/namecoin-core,bitcoin/bitcoin,kallewoof/bitcoin,jlopp/statoshi,achow101/bitcoin,domob1812/namecore,GroestlCoin/GroestlCoin,ajtowns/bitcoin,AkioNak/bitcoin,anditto/bitcoin,jnewbery/bitcoin,sstone/bitcoin,namecoin/namecore,instagibbs/bitcoin,Sjors/bitcoin,yenliangl/bitcoin,qtumproject/qtum,pataquets/namecoin-core,andreaskern/bitcoin,GroestlCoin/GroestlCoin,fujicoin/fujicoin,fanquake/bitcoin,pstratem/bitcoin,fanquake/bitcoin,jnewbery/bitcoin,dscotese/bitcoin,namecoin/namecore,bitcoinknots/bitcoin,achow101/bitcoin,jlopp/statoshi,jamesob/bitcoin,n1bor/bitcoin,cdecker/bitcoin,anditto/bitcoin,particl/particl-core,achow101/bitcoin,lateminer/bitcoin,apoelstra/bitcoin,instagibbs/bitcoin,bitcoin/bitcoin,domob1812/bitcoin,fujicoin/fujicoin,bitcoin/bitcoin,ajtowns/bitcoin,jlopp/statoshi,practicalswift/bitcoin,apoelstra/bitcoin,jamesob/bitcoin,prusnak/bitcoin,prusnak/bitcoin,domob1812/namecore,mruddy/bitcoin,anditto/bitcoin,MeshCollider/bitcoin,pataquets/namecoin-core,domob1812/bitcoin,Sjors/bitcoin,particl/particl-core,AkioNak/bitcoin,prusnak/bitcoin,yenliangl/bitcoin,pstratem/bitcoin,bitcoin/bitcoin,jamesob/bitcoin,domob1812/bitcoin,mruddy/bitcoin,practicalswift/bitcoin,jlopp/statoshi,Xekyo/bitcoin,prusnak/bitcoin,pataquets/namecoin-core,prusnak/bitcoin,JeremyRubin/bitcoin,jambolo/bitcoin,namecoin/namecoin-core,ElementsProject/elements,sipsorcery/bitcoin,sstone/bitcoin,AkioNak/bitcoin,domob1812/bitcoin,AkioNak/bitcoin,domob1812/namecore,jlopp/statoshi,qtumproject/qtum,EthanHeilman/bitcoin,Sjors/bitcoin,fanquake/bitcoin,tecnovert/particl-core,practicalswift/bitcoin,achow101/bitcoin,sstone/bitcoin,tecnovert/particl-core,bitcoinsSG/bitcoin,kallewoof/bitcoin,fujicoin/fujicoin,MarcoFalke/bitcoin,tecnovert/particl-core,yenliangl/bitcoin,namecoin/namecoin-core,MeshCollider/bitcoin,domob1812/bitcoin,lateminer/bitcoin,rnicoll/bitcoin,lateminer/bitcoin,mm-s/bitcoin,mruddy/bitcoin,fujicoin/fujicoin,dscotese/bitcoin,MarcoFalke/bitcoin,JeremyRubin/bitcoin,namecoin/namecore,jnewbery/bitcoin,jnewbery/bitcoin,GroestlCoin/GroestlCoin,jamesob/bitcoin,dscotese/bitcoin,tecnovert/particl-core,domob1812/namecore,GroestlCoin/bitcoin,bitcoinknots/bitcoin,n1bor/bitcoin,yenliangl/bitcoin,namecoin/namecoin-core,sipsorcery/bitcoin,ajtowns/bitcoin,instagibbs/bitcoin,bitcoinsSG/bitcoin,andreaskern/bitcoin,particl/particl-core,MarcoFalke/bitcoin,Xekyo/bitcoin,instagibbs/bitcoin,fanquake/bitcoin,particl/particl-core,lateminer/bitcoin,n1bor/bitcoin,achow101/bitcoin,rnicoll/bitcoin,cdecker/bitcoin,lateminer/bitcoin,AkioNak/bitcoin,kallewoof/bitcoin,Sjors/bitcoin,Xekyo/bitcoin,GroestlCoin/bitcoin,namecoin/namecore,mruddy/bitcoin,n1bor/bitcoin,andreaskern/bitcoin,rnicoll/bitcoin,EthanHeilman/bitcoin,ElementsProject/elements,MarcoFalke/bitcoin,EthanHeilman/bitcoin,bitcoinknots/bitcoin,fujicoin/fujicoin,dscotese/bitcoin,Sjors/bitcoin,qtumproject/qtum,rnicoll/bitcoin,practicalswift/bitcoin,EthanHeilman/bitcoin,achow101/bitcoin,Xekyo/bitcoin,n1bor/bitcoin,namecoin/namecore,apoelstra/bitcoin