Randomize watchpoint instruction skip count

configname: CONFIG_KCSAN_SKIP_WATCH_RANDOMIZE

Linux Kernel Configuration
└─>Kernel hacking
└─>Generic Kernel Debugging Instruments
└─>KCSAN: dynamic data race detector
└─>Randomize watchpoint instruction skip count
In linux kernel since version 5.1 (release Date: 2019-05-05)  
If instruction skip count should be randomized, where the maximum is
KCSAN_WATCH_SKIP. If false, the chosen value is always
KCSAN_WATCH_SKIP.

depends
CONFIG_KCSAN