iwlwifi: adjust driver description

Adjust the module driver descriptions for mvm and mld to make it clear
that this is not a driver for Linux but a Linux-based driver for FreeBSD.
Cleanup surroundings.

Sponsored by:	The FreeBSD Foundation
MFC after:	3 days

sys/contrib/dev/iwlwifi/mld/mld.c

@@ -28,9 +28,15 @@
 
 #include "iwl-nvm-parse.h"
 
+#if defined(__linux__)
 #define DRV_DESCRIPTION "Intel(R) MLD wireless driver for Linux"
+#elif defined(__FreeBSD__)
+#define DRV_DESCRIPTION "Intel(R) MLD wireless Linux-based driver for FreeBSD"
+#endif
 MODULE_DESCRIPTION(DRV_DESCRIPTION);
+#if defined(__linux__)
 MODULE_LICENSE("GPL");
+#endif
 MODULE_IMPORT_NS("IWLWIFI");
 
 static const struct iwl_op_mode_ops iwl_mld_ops;

sys/contrib/dev/iwlwifi/mvm/ops.c

@@ -39,9 +39,8 @@
 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 MODULE_LICENSE("GPL");
 #elif defined(__FreeBSD__)
-#define DRV_DESCRIPTION	"The new Intel(R) wireless AGN/AC/AX based driver for FreeBSD"
+#define DRV_DESCRIPTION	"The new Intel(R) wireless AGN/AC/AX Linux-based driver for FreeBSD"
 MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_LICENSE("BSD");
 #endif
 MODULE_IMPORT_NS("IWLWIFI");