Apply suggestion from @vincentpoont2

Co-authored-by: Vincent Poon <vincentpoont2@gmail.com>

Author: peterbarker

libraries/AP_HAL_ChibiOS/hwdef/Pixhawk6X/hwdef.dat

@@ -287,7 +287,7 @@ BARO BMP388 I2C:0:0x77
 
 # barometers (Holybro 6X more recent versions)
 BARO BMP581 I2C:2:0x46
-BARO BMP581 I2C:0:0x47
+BARO BMP581 I2C:0:0x46
 
 # barometers (CUAV 6X)
 BARO ICP201XX I2C:0:0x64