sdm: Add support to parse vbif fudge factor.

Change-Id: I5116f470b69707d0f6683d10bdccff3bf67c44ae
CRs-Fixed: 2431129
diff --git a/libdrmutils/drm_interface.h b/libdrmutils/drm_interface.h
index 62db78e..03c8e0e 100644
--- a/libdrmutils/drm_interface.h
+++ b/libdrmutils/drm_interface.h
@@ -508,8 +508,8 @@
   uint32_t min_prefill_lines = 0;
   int secure_disp_blend_stage = -1;
   bool concurrent_writeback = false;
-  uint32_t num_mnocports;
-  uint32_t mnoc_bus_width;
+  uint32_t num_mnocports = 0;
+  uint32_t mnoc_bus_width = 0;
   bool use_baselayer_for_stage = false;
   uint32_t vig_limit_index = 0;
   uint32_t dma_limit_index = 0;
@@ -517,6 +517,7 @@
   uint32_t rotation_limit_index = 0;
   uint32_t line_width_constraints_count = 0;
   std::vector< std::pair <uint32_t, uint32_t> > line_width_limits;
+  float vbif_cmd_ff = 0.0f;
 };
 
 enum struct DRMPlaneType {