qdMetadata: Use uint32_t instead of bool

Some graphics drivers don't recognize bool (^^) so use uint32_t
instead to fix compilation issues.

Change-Id: I12e13ed4d13ec241467a4c5a2b9cf2e409ee5505
diff --git a/libqdutils/qdMetaData.cpp b/libqdutils/qdMetaData.cpp
index 635e676..79daa14 100644
--- a/libqdutils/qdMetaData.cpp
+++ b/libqdutils/qdMetaData.cpp
@@ -85,7 +85,7 @@
             data->igc = *((IGC_t *)param);
             break;
         case SET_SINGLE_BUFFER_MODE:
-            data->isSingleBufferMode = *((bool *)param);
+            data->isSingleBufferMode = *((uint32_t *)param);
             break;
         default:
             ALOGE("Unknown paramType %d", paramType);
diff --git a/libqdutils/qdMetaData.h b/libqdutils/qdMetaData.h
index a927f75..a1d9350 100644
--- a/libqdutils/qdMetaData.h
+++ b/libqdutils/qdMetaData.h
@@ -78,7 +78,7 @@
     uint32_t linearFormat;
     /* Set by graphics to indicate that this buffer will be written to but not
      * swapped out */
-    bool isSingleBufferMode;
+    uint32_t isSingleBufferMode;
 };
 
 enum DispParamType {