xfree86: fbmodule: use explicit field initializers for XF86ModuleData

Even though the order of these fields shouldn't change anytime
soon, it's still better programming style to name'em explicitly.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1788>

hw/xfree86/dixmods/fbmodule.c

@@ -33,20 +33,21 @@
 
 static XF86ModuleVersionInfo VersRec = {
 #ifdef FB_ACCESS_WRAPPER
-    "wfb",
+    .modname      = "wfb",
 #else
-    "fb",
+    .modname      = "fb",
 #endif
-    MODULEVENDORSTRING,
-    MODINFOSTRING1,
-    MODINFOSTRING2,
-    XORG_VERSION_CURRENT,
-    1, 0, 0,
-    ABI_CLASS_ANSIC,            /* Only need the ansic layer */
-    ABI_ANSIC_VERSION,
-    MOD_CLASS_NONE,
-    {0, 0, 0, 0}                /* signature, to be patched into the file by a tool */
+    .vendor       = MODULEVENDORSTRING,
+    ._modinfo1_   = MODINFOSTRING1,
+    ._modinfo2_   = MODINFOSTRING2,
+    .xf86version  = XORG_VERSION_CURRENT,
+    .majorversion = 1,
+    .minorversion = 0,
+    .patchlevel   = 0,
+    .abiclass     = ABI_CLASS_ANSIC,
+    .abiversion   = ABI_ANSIC_VERSION,
 };
 
 _X_EXPORT XF86ModuleData FBPREFIX(ModuleData) = {
-&VersRec, NULL, NULL};
+    .vers = &VersRec
+};