Monitor: enable module on FreeBSD and SunOS

Fix #1101

Author: CarterLi

CMakeLists.txt

@@ -591,7 +591,7 @@ elseif(BSD)
         src/detection/gamepad/gamepad_bsd.c
         src/detection/media/media_linux.c
         src/detection/memory/memory_bsd.c
-        src/detection/monitor/monitor_nosupport.c
+        src/detection/monitor/monitor_linux.c
         src/detection/netio/netio_bsd.c
         src/detection/opengl/opengl_linux.c
         src/detection/os/os_linux.c
@@ -796,7 +796,7 @@ elseif(SunOS)
         src/detection/gamepad/gamepad_nosupport.c
         src/detection/media/media_linux.c
         src/detection/memory/memory_sunos.c
-        src/detection/monitor/monitor_nosupport.c
+        src/detection/monitor/monitor_linux.c
         src/detection/netio/netio_sunos.c
         src/detection/opengl/opengl_linux.c
         src/detection/os/os_sunos.c