Fixes for posix-arm and qurt builds

Ifdefed out deadcode in position_estimator_inav_main.c as the
deadcode does not compile for qurt.

Added fixes to get a successful build for posix-arm and qurt targets.
Removed CLOCK_REALTIME def from px4_time.h for qurt and removed unused
variables in att_est_q and mc_att_control.

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

makefiles/posix-arm/config_eagle_default.mk

@@ -49,7 +49,7 @@ MODULES		+= modules/dataman
 MODULES		+= modules/sdlog2
 MODULES		+= modules/simulator
 MODULES		+= modules/commander
-#MODULES 	+= modules/controllib
+MODULES 	+= modules/controllib
 
 #
 # Libraries
@@ -63,6 +63,7 @@ MODULES		+= lib/conversion
 # Linux port
 #
 MODULES		+= platforms/posix/px4_layer
+MODULES		+= platforms/posix/work_queue
 
 #
 # Unit tests

makefiles/posix-arm/config_eagle_hil.mk

@@ -64,6 +64,7 @@ MODULES		+= lib/conversion
 # Linux port
 #
 MODULES		+= platforms/posix/px4_layer
+MODULES		+= platforms/posix/work_queue
 #MODULES		+= platforms/posix/drivers/accelsim
 #MODULES		+= platforms/posix/drivers/gyrosim
 #MODULES		+= platforms/posix/drivers/adcsim

makefiles/posix-arm/config_eagle_muorb_test.mk

@@ -63,6 +63,7 @@ MODULES		+= modules/uORB
 # Linux port
 #
 MODULES		+= platforms/posix/px4_layer
+MODULES		+= platforms/posix/work_queue
 #MODULES		+= platforms/posix/drivers/accelsim
 #MODULES		+= platforms/posix/drivers/gyrosim
 #MODULES		+= platforms/posix/drivers/adcsim

makefiles/qurt/config_qurt_default.mk

@@ -47,7 +47,7 @@ MODULES		+= modules/systemlib/mixer
 MODULES		+= modules/uORB
 #MODULES		+= modules/dataman
 #MODULES		+= modules/sdlog2
-MODULES		+= modules/simulator
+#MODULES		+= modules/simulator
 #MODULES		+= modules/commander
 
 #