iio: accel: BMC150: fix scale value for 16G

According to documentation ([1] - page 27), the range for 16G is
7.81mg/LSB. Converted to SI, this is:
    7.81 * 10^-3 * 9.80665 m/s^2 / LSB = 0.0765899365 m/s^2 / LSB

[1] http://ae-bst.resource.bosch.com/media/products/dokumente/bmc150/BST-BMC150-DS000-04.pdfSigned-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/accel/bmc150-accel.c

@@ -173,7 +173,7 @@ static const struct {
 } bmc150_accel_scale_table[] = { {9610, BMC150_ACCEL_DEF_RANGE_2G},
 				 {19122, BMC150_ACCEL_DEF_RANGE_4G},
 				 {38344, BMC150_ACCEL_DEF_RANGE_8G},
-				 {77057, BMC150_ACCEL_DEF_RANGE_16G} };
+				 {76590, BMC150_ACCEL_DEF_RANGE_16G} };
 
 static const struct {
 	int sleep_dur;