tests: driver_ina220: vtimer -> xtimer

tests/driver_ina220/Makefile

@@ -4,7 +4,7 @@ include ../Makefile.tests_common
 FEATURES_REQUIRED = periph_i2c
 
 USEMODULE += ina220
-USEMODULE += vtimer
+USEMODULE += xtimer
 
 ifneq (,$(TEST_INA220_I2C))
   CFLAGS += -DTEST_INA220_I2C=$(TEST_INA220_I2C)

tests/driver_ina220/main.c

@@ -27,7 +27,7 @@
 
 #include <stdio.h>
 
-#include "vtimer.h"
+#include "xtimer.h"
 #include "ina220.h"
 
 /* Use the following configuration:
@@ -99,7 +99,7 @@ int main(void)
         ina220_read_power(&dev, &val);
         printf("\tpower: %6d\n", val);
 
-        vtimer_usleep(SLEEP);
+        xtimer_usleep(SLEEP);
     }
 
     return 0;