Define DRM_MAJOR in one more libdrm copy after 6cafa0b

In file included from cmrtlib/linux/hardware/cm_device_os.cpp:24:
cmrtlib/linux/../linux/hardware/drm_device.h:254:19: error: use of undeclared identifier 'DRM_MAJOR'
    return maj == DRM_MAJOR;
                  ^

cmrtlib/linux/hardware/drm_device.h

@@ -61,6 +61,26 @@
 #define MAP_FAILED ((void *)-1)
 #endif
 
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
+#define DRM_MAJOR 145
+#endif
+
+#ifdef __NetBSD__
+#define DRM_MAJOR 34
+#endif
+
+#ifdef __OpenBSD__
+#ifdef __i386__
+#define DRM_MAJOR 88
+#else
+#define DRM_MAJOR 87
+#endif
+#endif /* __OpenBSD__ */
+
+#ifndef DRM_MAJOR
+#define DRM_MAJOR 226 /* Linux */
+#endif
+
 #define DRM_DEV_UID  0
 #define DRM_DEV_GID  0
 /* Default /dev/dri directory permissions 0755 */