tests: driver_mpu9150: vtimer -> xtimer

tests/driver_mpu9150/Makefile

@@ -11,7 +11,7 @@ ifneq (,$(filter msbiot,$(BOARD)))
 endif
 
 USEMODULE += mpu9150
-USEMODULE += vtimer
+USEMODULE += xtimer
 
 ifneq (,$(TEST_I2C))
   CFLAGS += -DTEST_I2C=$(TEST_I2C)

tests/driver_mpu9150/main.c

@@ -32,7 +32,7 @@
 #include <inttypes.h>
 
 #include "mpu9150.h"
-#include "vtimer.h"
+#include "xtimer.h"
 #include "board.h"
 
 #define SLEEP   (1000 * 1000u)
@@ -46,8 +46,6 @@ int main(void)
 
     puts("MPU-9150 test application\n");
 
-    vtimer_init();
-
     printf("+------------Initializing------------+\n");
     result = mpu9150_init(&dev, TEST_I2C, TEST_HW_ADDR, TEST_COMP_ADDR);
 
@@ -100,7 +98,7 @@ int main(void)
         printf("Temperature [milli deg] : %ld\n", temperature);
         printf("\n+-------------------------------------+\n");
 
-        vtimer_usleep(SLEEP);
+        xtimer_usleep(SLEEP);
     }
 
     return 0;