add processor.max_cstate=0 to intel cpu cmdline

Author: Xichen96

installer/default_platform.conf

@@ -481,7 +481,7 @@ bootloader_menu_config()
     echo "Switch CPU vendor is: $CPUVENDOR"
     if echo "$CPUVENDOR" | grep -i 'Intel' >/dev/null 2>&1; then
         echo "Switch CPU cstates are: disabled"
-        CSTATES="intel_idle.max_cstate=0"
+        CSTATES="processor.max_cstate=1 intel_idle.max_cstate=0"
     else
         CSTATES=""
     fi