sensor: bmi08x: Fix variable name in bmi08x_acc_trigger_mode_init

Fix undeclared variable error by changing 'config' to 'cfg' in the
data_sync condition check, matching the variable name declared at the
beginning of the function.

Signed-off-by: Liang Jiaxiang <moonbite233@gmail.com>

Author: 120MF

drivers/sensor/bosch/bmi08x/bmi08x_accel_trigger.c

@@ -111,7 +111,7 @@ int bmi08x_acc_trigger_mode_init(const struct device *dev)
 #endif
 
 #if BMI08X_ACCEL_ANY_INST_HAS_DATA_SYNC
-	if (config->data_sync != 0) {
+	if (cfg->data_sync != 0) {
 		/* set accel ints */
 		ret = bmi08x_accel_byte_write(dev, BMI08X_REG_ACCEL_INT1_MAP, cfg->int1_map);
 		if (ret < 0) {