asp5033: fix K value

As QioTek told me via email.

Signed-off-by: Julian Oes <[email protected]>

src/drivers/differential_pressure/asp5033/ASP5033.cpp

@@ -222,7 +222,7 @@ int ASP5033::collect()
 
 	// k is a shift based on the pressure range of the device. See
 	// table in the datasheet
-	constexpr uint8_t k = 8;
+	constexpr uint8_t k = 7;
 	constexpr float press_scale = 1.0f / (1U << k); //= 1.0f / (1U << k);
 	press_sum += press * press_scale;
 	press_count++;