[BSP] Update to IRAM2 in frdm-k64f

Author: BernardXiong

bsp/frdm-k64f/applications/startup.c

@@ -30,8 +30,8 @@ extern void finsh_set_device(const char* device);
 #endif
 
 #ifdef __CC_ARM
-extern int Image$$RW_IRAM1$$ZI$$Limit;
-#define K64_SRAM_BEGIN    (&Image$$RW_IRAM1$$ZI$$Limit)
+extern int Image$$RW_IRAM2$$ZI$$Limit;
+#define K64_SRAM_BEGIN    (&Image$$RW_IRAM2$$ZI$$Limit)
 #elif __ICCARM__
 #pragma section="HEAP"
 #define K64_SRAM_BEGIN    (__segment_end("HEAP"))

bsp/frdm-k64f/board/board.h

@@ -23,8 +23,8 @@
 
 // <o> Internal SRAM memory size[Kbytes] <8-64>
 // <i>Default: 64
-#define K64_SRAM_SIZE         256
-#define K64_SRAM_END          (0x1FFF0000 + (K64_SRAM_SIZE * 1024))
+#define K64_SRAM_SIZE         192
+#define K64_SRAM_END          (0x20000000 + (K64_SRAM_SIZE * 1024))
 
 //#define RT_USING_UART1
 #define RT_USING_UART0