radeon/surface: free version after using it.

fixes leak in valgrind.

Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/radeon/radeon_surface.c b/radeon/radeon_surface.c
index 0afd596..c80f7f4 100644
--- a/radeon/radeon_surface.c
+++ b/radeon/radeon_surface.c
@@ -191,6 +191,7 @@
     if (version && version->version_minor >= 14) {
         surf_man->hw_info.allow_2d = 1;
     }
+    drmFreeVersion(version);
 
     switch ((tiling_config & 0xe) >> 1) {
     case 0:
@@ -470,6 +471,7 @@
     if (version && version->version_minor >= 16) {
         surf_man->hw_info.allow_2d = 1;
     }
+    drmFreeVersion(version);
 
     switch (tiling_config & 0xf) {
     case 0: