tests: Change clear to fill buffer to avoid renderpass warning
diff --git a/tests/vkrenderframework.cpp b/tests/vkrenderframework.cpp
index 9d6d991..761abe5 100644
--- a/tests/vkrenderframework.cpp
+++ b/tests/vkrenderframework.cpp
@@ -1345,6 +1345,11 @@
     }
 }
 
+void VkCommandBufferObj::FillBuffer(VkBuffer buffer, VkDeviceSize offset, VkDeviceSize fill_size, uint32_t data)
+{
+    vkCmdFillBuffer( handle(), buffer, offset, fill_size, data);
+}
+
 void VkCommandBufferObj::PrepareAttachments()
 {
     uint32_t i;