Fix some missing UBO qualifier link validation errors.

TRAC #23747

Signed-off-by: Nicolas Capens
Signed-off-by: Shannon Woods

diff --git a/src/compiler/Uniform.cpp b/src/compiler/Uniform.cpp
index 7b6107a..6bfdef5 100644
--- a/src/compiler/Uniform.cpp
+++ b/src/compiler/Uniform.cpp
@@ -50,7 +50,8 @@
     : name(name),
       arraySize(arraySize),
       layout(BLOCKLAYOUT_SHARED),
-      registerIndex(registerIndex)
+      registerIndex(registerIndex),
+      isRowMajorLayout(false)
 {
 }