tests: Update valgrind suppressions file

tests/.valgrind.supp

@@ -258,14 +258,58 @@
    Memcheck:Param
    capget(data)
    fun:capget
+   fun:*
    fun:capng_clear
+   fun:virClearCapabilities
    fun:__virExec
    fun:virExecWithHook
-   fun:virExec
-   fun:qemudProbeMachineTypes
-   fun:qemudCapsInitGuest
-   fun:qemudCapsInit
-   fun:qemudStartup
-   fun:virStateInitialize
-   fun:main
+}
+{
+   libnlMemoryLeak1
+   Memcheck:Leak
+   fun:malloc
+   fun:strdup
+   obj:/usr/lib/libnl.so.1.1
+}
+{
+   libnlMemoryLeak2
+   Memcheck:Leak
+   fun:calloc
+   obj:/usr/lib/libnl.so.1.1
+}
+{
+   libselinuxMemoryLeak1
+   Memcheck:Leak
+   fun:malloc
+   fun:getdelim
+   obj:/lib/libselinux.so.1
+}
+{
+   dashMemoryLeak1
+   Memcheck:Leak
+   fun:malloc
+   obj:/bin/dash
+}
+{
+   dashMemoryLeak2
+   Memcheck:Leak
+   fun:malloc
+   fun:strdup
+   obj:/bin/dash
+}
+{
+   vboxMemoryLeak1
+   Memcheck:Leak
+   ...
+   fun:VBoxNsxpNS_InitXPCOM2
+}
+{
+   libnetcfMemoryLeak1
+   fun:malloc
+   fun:xmlStrndup
+   fun:xmlHashUpdateEntry3
+   fun:*
+   fun:xsltRegisterAllExtras
+   fun:drv_init
+   fun:interfaceOpenInterface
 }