switch remaining boards to new InvenSense IMU drivers

boards/nxp/fmurt1062-v1/init/rc.board_sensors

@@ -18,10 +18,10 @@
 adc start
 
 # Internal SPI bus ICM-20602
-mpu6000 -R 8 -s -T 20602 start
+icm20602 -R 2 -s start
 
 # Internal SPI bus ICM-20689
-mpu6000 -R 8 -s -T 20689 start
+icm20689 -R 2 -s start
 
 # Internal SPI bus BMI055 accel
 bmi055 -A -R 10 -s start
@@ -47,11 +47,3 @@ ist8310 -I start
 
 # Baro on internal SPI
 ms5611 -s start
-
-# External RM3100
-rm3100 -X start
-
-# Possible pmw3901 optical flow sensor
-pmw3901 -S start
-
-px4flow start -X