Sublime Text: Add posix target

Firmware.sublime-project

@@ -50,6 +50,13 @@
 			"file_regex": "^(..[^:]*):([0-9]+):?([0-9]+)?:? (.*)$",
 			"cmd": ["make upload px4fmu-v2_default -j8"],
 			"shell": true
+		},
+		{
+			"name": "PX4: make posix",
+			"working_dir": "${project_path}",
+			"file_regex": "^(..[^:]*):([0-9]+):?([0-9]+)?:? (.*)$",
+			"cmd": ["make posix"],
+			"shell": true
 		}
 	]
 }