vlib: Place linux pci headers in a linux include block

Type: improvement
Change-Id: I6b30ffd1eabfa9544d548082b7e38b8fe7224c07
Signed-off-by: Tom Jones <thj@freebsd.org>

src/vlib/pci/pci.c

@@ -47,8 +47,10 @@
 #include <dirent.h>
 #include <sys/ioctl.h>
 #include <net/if.h>
+#ifdef __linux__
 #include <linux/ethtool.h>
 #include <linux/sockios.h>
+#endif /* __linux__ */
 
 vlib_pci_main_t pci_main;