Merge pull request #4803 from chenyingchun0312/master

[bsp/nrf5x] modify nrf52832 default memory config

bsp/nrf5x/nrf52832/board/Kconfig

@@ -351,7 +351,7 @@ menu "On-chip Peripheral Drivers"
         config MCU_FLASH_SIZE_KB  
             int "MCU FLASH SIZE, MAX size 1024 KB"
             range 1 1024
-            default 1024		
+            default 512		
 
         config MCU_SRAM_START_ADDRESS 
             hex "MCU RAM START ADDRESS"
@@ -360,7 +360,7 @@ menu "On-chip Peripheral Drivers"
         config MCU_SRAM_SIZE_KB 
             int "MCU RAM SIZE, MAX size 256 KB"
             range 1 256
-            default 256
+            default 64
 
         config MCU_FLASH_PAGE_SIZE 
             hex "MCU FLASH PAGE SIZE, please not change,nrfx default is 0x1000"