Pass over drivers to reduce build size

src/drivers/airspeed/module.mk

@@ -36,3 +36,5 @@
 #
 
 SRCS			= airspeed.cpp
+
+MAXOPTIMIZATION	 = -Os

src/drivers/bma180/module.mk

@@ -38,3 +38,5 @@
 MODULE_COMMAND	= bma180
 
 SRCS		= bma180.cpp
+
+MAXOPTIMIZATION	 = -Os

src/drivers/ets_airspeed/module.mk

@@ -40,3 +40,5 @@ MODULE_COMMAND		= ets_airspeed
 SRCS			= ets_airspeed.cpp
 
 MODULE_STACKSIZE	= 1200
+
+MAXOPTIMIZATION	 = -Os

src/drivers/hil/module.mk

@@ -38,3 +38,5 @@
 MODULE_COMMAND	= hil
 
 SRCS		= hil.cpp
+
+MAXOPTIMIZATION	 = -Os

src/drivers/led/module.mk

@@ -36,3 +36,5 @@
 #
 
 SRCS		= led.cpp
+
+MAXOPTIMIZATION	 = -Os

src/drivers/md25/module.mk

@@ -40,3 +40,5 @@ MODULE_COMMAND		= md25
 
 SRCS			= md25.cpp \
 			  md25_main.cpp
+
+MAXOPTIMIZATION	 = -Os

src/drivers/meas_airspeed/module.mk

@@ -42,3 +42,5 @@ SRCS			= meas_airspeed.cpp
 MODULE_STACKSIZE	= 1200
 
 EXTRACXXFLAGS	= -Weffc++
+
+MAXOPTIMIZATION	 = -Os

src/drivers/ms5611/module.mk

@@ -38,3 +38,5 @@
 MODULE_COMMAND	= ms5611
 
 SRCS		= ms5611.cpp ms5611_spi.cpp ms5611_i2c.cpp
+
+MAXOPTIMIZATION	 = -Os

src/drivers/px4flow/module.mk

@@ -38,3 +38,5 @@
 MODULE_COMMAND	= px4flow
 
 SRCS		= px4flow.cpp
+
+MAXOPTIMIZATION	 = -Os

src/drivers/roboclaw/module.mk

@@ -39,3 +39,5 @@ MODULE_COMMAND		= roboclaw
 
 SRCS			= roboclaw_main.cpp \
 			  RoboClaw.cpp
+
+MAXOPTIMIZATION	 = -Os