Valgrind suppressions for new Debian 9 GPU bot

Bug: skia:
Change-Id: I813fe71812ec65778b48b8b13f238b8df7b8f8cd
Reviewed-on: https://skia-review.googlesource.com/21360
Commit-Queue: Eric Boren <borenet@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
diff --git a/tools/valgrind.supp b/tools/valgrind.supp
index d0640fe..064f8ef 100644
--- a/tools/valgrind.supp
+++ b/tools/valgrind.supp
@@ -94,6 +94,13 @@
     obj:/usr/lib*/libGL.so*
 }
 {
+   nv_driver_bug_4
+   Memcheck:Param
+   sendmsg(msg.msg_iov[0])
+   fun:sendmsg
+   obj:*/libGLX_nvidia.so*
+}
+{
     #Fixed by FontConfig 2.9.0
     #http://cgit.freedesktop.org/fontconfig/commit/?id=1c475d5c8cb265ac939d6b9e097666e300162511
     font_config_bug_1
@@ -133,6 +140,21 @@
     fun:FcFontRenderPrepare
 }
 {
+   font_config_bug_5
+   Memcheck:Leak
+   fun:malloc
+   obj:*/libfontconfig.so.1.8.0
+   fun:FcConfigSubstituteWithPat
+}
+{
+   font_config_bug_6
+   Memcheck:Leak
+   fun:*alloc
+   ...
+   obj:*/libfontconfig.so.1.8.0
+   fun:FcFont*
+}
+{
     zlib_bug_1
     Memcheck:Cond
     fun:inflateReset2