rocksdb: update to 6.26.1
rocksdb: update to 6.26.1

* Remove redundant makedepends gcc.
* Use general cmake commands.
oscarfv/MINGW-packages,oroppas/MINGW-packages,JPeterMugaas/MINGW-packages,stahta01/MINGW-packages,Alexpux/MINGW-packages,fabiangreffrath/MINGW-packages,stahta01/MINGW-packages,lhmouse/MINGW-packages,oroppas/MINGW-packages,oscarfv/MINGW-packages,stahta01/MINGW-packages,Alexpux/MINGW-packages,oscarfv/MINGW-packages,Alexpux/MINGW-packages,JPeterMugaas/MINGW-packages,stahta01/MINGW-packages,fabiangreffrath/MINGW-packages,lhmouse/MINGW-packages,JPeterMugaas/MINGW-packages,lhmouse/MINGW-packages,stahta01/MINGW-packages,lhmouse/MINGW-packages,oroppas/MINGW-packages,fabiangreffrath/MINGW-packages,oscarfv/MINGW-packages,lhmouse/MINGW-packages,lhmouse/MINGW-packages,JPeterMugaas/MINGW-packages,oroppas/MINGW-packages,oscarfv/MINGW-packages,Alexpux/MINGW-packages,fabiangreffrath/MINGW-packages,Alexpux/MINGW-packages,fabiangreffrath/MINGW-packages,oroppas/MINGW-packages,fabiangreffrath/MINGW-packages,stahta01/MINGW-packages,JPeterMugaas/MINGW-packages,JPeterMugaas/MINGW-packages,Alexpux/MINGW-packages,oroppas/MINGW-packages,oscarfv/MINGW-packages