Commented out 1st definition of MAVLINK_SRC

The variable MAVLINK_SRC was defined and then redefined.
Commented out the first definition and moved beside that overriding
definition for visibility.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

makefiles/setup.mk

@@ -54,8 +54,8 @@ export PX4_LIB_DIR	 = $(abspath $(PX4_BASE)/src/lib)/
 export PX4_PLATFORMS_DIR = $(abspath $(PX4_BASE)/src/platforms)/
 export PX4_MK_DIR	 = $(abspath $(PX4_BASE)/makefiles)/
 export NUTTX_SRC	 = $(abspath $(PX4_BASE)/NuttX/nuttx)/
-export MAVLINK_SRC	 = $(abspath $(PX4_BASE)/mavlink/include/mavlink/v1.0)/
 export NUTTX_APP_SRC	 = $(abspath $(PX4_BASE)/NuttX/apps)/
+#export MAVLINK_SRC	 = $(abspath $(PX4_BASE)/mavlink/include/mavlink/v1.0)/
 export MAVLINK_SRC	 = $(abspath $(PX4_BASE)/mavlink)/
 export UAVCAN_DIR	 = $(abspath $(PX4_BASE)/uavcan)/
 export ROMFS_SRC	 = $(abspath $(PX4_BASE)/ROMFS)/