Merge pull request #4101 from guohp1128/master

#define ADC_NAME adc updated to header file.

bsp/nrf5x/libraries/drivers/drv_adc.c

@@ -12,8 +12,6 @@
 
 #ifdef RT_USING_ADC
 
-#define ADC_NAME "adc"
-
 struct rt_adc_device nrf5x_adc_device;
 
 drv_nrfx_saadc_result_t results;

bsp/nrf5x/libraries/drivers/drv_adc.h

@@ -16,6 +16,8 @@
 #include <hal/nrf_saadc.h>
 #include <drivers/include/nrfx_saadc.h>
 
+#define ADC_NAME "adc"
+
 /* 
     previous definition in application