Fix scripts/config --set-val calls in NR_CPUS prompt and remove deprecated command

Got distracted 🐸

linux-tkg-config/prepare

@@ -698,7 +698,6 @@ _tkg_srcprep() {
   _disable "DEBUG_FORCE_FUNCTION_ALIGN_64B"
   scripts/config --set-str "ZSWAP_COMPRESSOR_DEFAULT" "lz4"
   scripts/config --set-str "CMDLINE" "${_custom_commandline}"
-  scripts/config --set-val "NR_CPUS" "$_NR_CPUS_value"
   _disable "CMDLINE_OVERRIDE" "X86_P6_NOP" "CPU_FREQ_DEFAULT_GOV_ONDEMAND" "CPU_FREQ_DEFAULT_GOV_CONSERVATIVE"
   #echo "# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set" >> ./.config
 
@@ -1406,9 +1405,9 @@ CONFIG_DEBUG_INFO_BTF_MODULES=y\r
     _NR_CPUS_value="$(nproc)"
   fi
   if [ -n "$_NR_CPUS_value" ]; then
-    scripts/config --set-val "$_NR_CPUS_value"
+    scripts/config --set-val "NR_CPUS" "$_NR_CPUS_value"
   else
-    scripts/config --set-val "128"
+    scripts/config --set-val "NR_CPUS" "128"
   fi
 
   fi