aerofc: Look for px4flow sensor on telemetry port (#8994)

Signed-off-by: Sugnan Prabhu S <sugnan.prabhu.s@intel.com>

src/drivers/px4flow/px4flow.cpp

@@ -754,6 +754,10 @@ start(int argc, char *argv[])
 #ifdef PX4_I2C_BUS_ONBOARD
 			PX4_I2C_BUS_ONBOARD,
 #endif
+#ifdef PX4_I2C_BUS_EXPANSION1
+			PX4_I2C_BUS_EXPANSION1,
+#endif
+
 			-1
 		};