Only report races where watcher observed a data value change

configname: CONFIG_KCSAN_REPORT_VALUE_CHANGE_ONLY

Linux Kernel Configuration
└─>Kernel hacking
└─>Generic Kernel Debugging Instruments
└─>KCSAN: dynamic data race detector
└─>Only report races where watcher observed a data value change
In linux kernel since version 5.1 (release Date: 2019-05-05)  
If enabled and a conflicting write is observed via a watchpoint, but
the data value of the memory location was observed to remain
unchanged, do not report the data race.