tests: Initialize reserved flags as 0

Initialize the flags members of the pipeline state CreateInfo structs
that are reserved for future use to 0.

Change-Id: Id234c4d15a0e04d9b7709a18beb04c8c636502b0
diff --git a/tests/vkrenderframework.cpp b/tests/vkrenderframework.cpp
index db5ee3e..e647c9d 100644
--- a/tests/vkrenderframework.cpp
+++ b/tests/vkrenderframework.cpp
@@ -1135,6 +1135,7 @@
     m_device = device;
 
     m_vi_state.pNext = VK_NULL_HANDLE;
+    m_vi_state.flags = 0;
     m_vi_state.vertexBindingDescriptionCount = 0;
     m_vi_state.pVertexBindingDescriptions = VK_NULL_HANDLE;
     m_vi_state.vertexAttributeDescriptionCount = 0;
@@ -1145,12 +1146,14 @@
     m_ia_state.sType =
         VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
     m_ia_state.pNext = VK_NULL_HANDLE;
+    m_ia_state.flags = 0;
     m_ia_state.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
     m_ia_state.primitiveRestartEnable = VK_FALSE;
 
     m_rs_state.sType =
         VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
     m_rs_state.pNext = VK_NULL_HANDLE;
+    m_rs_state.flags = 0;
     m_rs_state.depthClampEnable = VK_TRUE;
     m_rs_state.rasterizerDiscardEnable = VK_FALSE;
     m_rs_state.polygonMode = VK_POLYGON_MODE_FILL;
@@ -1173,6 +1176,7 @@
 
     m_ms_state.pNext = VK_NULL_HANDLE;
     m_ms_state.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
+    m_ms_state.flags = 0;
     m_ms_state.pSampleMask = NULL;
     m_ms_state.alphaToCoverageEnable = VK_FALSE;
     m_ms_state.alphaToOneEnable = VK_FALSE;
@@ -1182,6 +1186,7 @@
 
     m_vp_state.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
     m_vp_state.pNext = VK_NULL_HANDLE;
+    m_vp_state.flags = 0;
     m_vp_state.viewportCount = 1;
     m_vp_state.scissorCount = 1;
     m_vp_state.pViewports = NULL;
@@ -1190,6 +1195,7 @@
     m_ds_state.sType =
         VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
     m_ds_state.pNext = VK_NULL_HANDLE, m_ds_state.depthTestEnable = VK_FALSE;
+    m_ds_state.flags = 0;
     m_ds_state.depthWriteEnable = VK_FALSE;
     m_ds_state.depthBoundsTestEnable = VK_FALSE;
     m_ds_state.depthCompareOp = VK_COMPARE_OP_LESS_OR_EQUAL;