Set CONFIG_PSI_DEFAULT_DISABLED to enabled by default when using Project C CPU schedulers.

linux-tkg-config/prepare

@@ -866,6 +866,11 @@ _tkg_srcprep() {
   _disable "CPU_FREQ_DEFAULT_GOV_ONDEMAND" "CPU_FREQ_DEFAULT_GOV_CONSERVATIVE" "CPU_FREQ_DEFAULT_GOV_PERFORMANCE" "CPU_FREQ_DEFAULT_GOV_PERFORMANCE_NODEF"
   _module "BLK_DEV_LOOP"
 
+  # buggy project C/PSI interaction workaround
+  if [ "${_cpusched}" = "pds" ] || [ "${_cpusched}" = "bmq" ]; then
+    _enable "PSI_DEFAULT_DISABLED"
+  fi
+
   if [ -n "$_custom_commandline" ]; then
     _enable "CMDLINE_BOOL"
     _disable "CMDLINE_OVERRIDE"