[PATCH] BaseTools: Fix GenFds error doesn't break build.

["Lin, Derek (HPS SW)" <derek.lin2@hpe.com>]

Fix a bug because of b3497bad1221704a5dbc5da0b10f42625f1ad2ed.
Before the patch, when GenFds fail, the build continue and return success.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Derek Lin <derek.lin2@hpe.com>
---
 BaseTools/Source/Python/build/build.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/BaseTools/Source/Python/build/build.py b/BaseTools/Source/Python/build/build.py
index cbbb291b2c..97271e634e 100644
--- a/BaseTools/Source/Python/build/build.py
+++ b/BaseTools/Source/Python/build/build.py
@@ -3,6 +3,7 @@
 #
 #  Copyright (c) 2014, Hewlett-Packard Development Company, L.P.<BR>  #  Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2018, Hewlett Packard Enterprise Development, L.P.<BR>
 #
 #  This program and the accompanying materials  #  are licensed and made available under the terms and conditions of the BSD License @@ -1384,7 +1385,8 @@ class Build():
 
         # genfds
         if Target == 'fds':
-            GenFdsApi(AutoGenObject.GenFdsCommandDict, self.Db)
+            if GenFdsApi(AutoGenObject.GenFdsCommandDict, self.Db):
+                EdkLogger.error("build", COMMAND_FAILURE)
             return True
 
         # run
@@ -2122,7 +2124,8 @@ class Build():
                         # Generate FD image if there's a FDF file found
                         #
                         GenFdsStart = time.time()
-                        GenFdsApi(Wa.GenFdsCommandDict, self.Db)
+                        if GenFdsApi(Wa.GenFdsCommandDict, self.Db):
+                            EdkLogger.error("build", COMMAND_FAILURE)
 
                         #
                         # Create MAP file for all platform FVs after GenFds.
--
2.17.0.windows.1