ICU upgrade to 54.1 step 2

source/common/ucmndata.h

Index: source/common/ucmndata.h
diff --git a/source/common/ucmndata.h b/source/common/ucmndata.h
index 36163c508b9774b8f9d2bb4abe22c341418254ed..0902921d1d445231876eee8cdb4004189ef27f13 100644
--- a/source/common/ucmndata.h
+++ b/source/common/ucmndata.h
@@ -44,6 +44,20 @@ typedef struct  {
 } DataHeader;
 
 typedef struct {
+    DataHeader hdr;
+    char padding[8];
+    uint32_t count, reserved;
+    /*
+    const struct {
+    const char *const name; 
+    const void *const data;
+    } toc[1];
+    */
+   int   fakeNameAndData[4];       /* TODO:  Change this header type from */
+                                   /*        pointerTOC to OffsetTOC.     */
+} ICU_Data_Header;
+
+typedef struct {
     uint32_t nameOffset;
     uint32_t dataOffset;
 } UDataOffsetTOCEntry;