BaseTools: Fixed issue for IgnoreAutoGen

https://bugzilla.tianocore.org/show_bug.cgi?id=2080

This patch is to improve build -u option to re-use
GlobalVar_<platformguid>_<arch>.bin file which is
introduced by multiple-process-autogen feature.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Steven Shi <steven.shi@intel.com>
Signed-off-by: Bob Feng <bob.c.feng@intel.com>
Acked-by: Liming Gao <liming.gao@intel.com>

BaseTools/Source/Python/AutoGen/ModuleAutoGen.py

@@ -2060,8 +2060,8 @@ class ModuleAutoGen(AutoGen):
 
         if not (self.MetaFile.Path, self.Arch) in gDict or \
            not gDict[(self.MetaFile.Path, self.Arch)].ModuleFilesHashDigest:
-           EdkLogger.quiet("[cache warning]: Cannot generate ModuleFilesHashDigest for module %s[%s]" %(self.MetaFile.Path, self.Arch))
-           return
+            EdkLogger.quiet("[cache warning]: Cannot generate ModuleFilesHashDigest for module %s[%s]" %(self.MetaFile.Path, self.Arch))
+            return
 
         # Initialze hash object
         m = hashlib.md5()