Vlv2TbltDevicePkg: Enabled spread spectrum control

Enabled spread spectrum control and removed setup screen option.

Contributed-under: TianoCore Contribution Agreement 1.0

Signed-off-by: Guo Mang <mang.guo@intel.com>
Reviewed-by: David Wei <david.wei@intel.com>

Author: mangguo321

Vlv2TbltDevicePkg/PlatformSetupDxe/SouthClusterConfig.vfi

@@ -870,13 +870,14 @@ form formid = MISC_OPTIONS_FORM_ID,
      option text = STRING_TOKEN(STR_S5_AFTER_G3_STRING), value = 1, flags = MANUFACTURING | RESET_REQUIRED;
   endoneof;
 
+  suppressif TRUE;
   oneof varid  = Setup.EnableClockSpreadSpec,
      prompt   = STRING_TOKEN(STR_CLOCK_SPREAD_SPEC_ENABLE),
      help     = STRING_TOKEN(STR_CLOCK_SPREAD_SPEC_ENABLE_HELP),
-     option text = STRING_TOKEN(STR_DISABLE), value = 0, flags = DEFAULT | MANUFACTURING | RESET_REQUIRED;
-     option text = STRING_TOKEN(STR_ENABLE), value = 1, flags = RESET_REQUIRED;
+     option text = STRING_TOKEN(STR_DISABLE), value = 0, flags = RESET_REQUIRED;
+     option text = STRING_TOKEN(STR_ENABLE), value = 1, flags = DEFAULT | MANUFACTURING | RESET_REQUIRED;
   endoneof;
-
+  endif;
 
   oneof varid  = Setup.UartInterface,
     prompt   = STRING_TOKEN(STR_PCH_UART_SELECT),