[diskio] Force type of stat.Rdev uint64 for mipsle compatibility
[diskio] Force type of stat.Rdev uint64 for mipsle compatibility

For most platforms, stat.Rdev is already a uint64 so this is without any effect
for linux,mipsle, unix.Stat_t.Rdev is a uint32, but the way to compute major and minor doesn't change, casting the uint32 has no impact either

nferch/telegraf,influxdata/telegraf,srfraser/telegraf,Brightspace/telegraf,sebito91/telegraf,marianob85/telegraf,puckpuck/telegraf,Brightspace/telegraf,nferch/telegraf,puckpuck/telegraf,nferch/telegraf,marianob85/telegraf,m4ce/telegraf,srfraser/telegraf,sebito91/telegraf,oldmantaiter/telegraf,oldmantaiter/telegraf,srfraser/telegraf,puckpuck/telegraf,m4ce/telegraf,sebito91/telegraf,influxdata/telegraf,mchuang3/telegraf,influxdata/telegraf,li-ang/telegraf,apigee-internal/telegraf,marianob85/telegraf,li-ang/telegraf,li-ang/telegraf,Brightspace/telegraf,oldmantaiter/telegraf,mchuang3/telegraf,apigee-internal/telegraf,mchuang3/telegraf,marianob85/telegraf,apigee-internal/telegraf,m4ce/telegraf