Fixed wrong RAM start and added NVIC start.

Author: andreas.larsson

hal/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_UBLOX_C029/TOOLCHAIN_IAR/stm32f439xx_flash.icf

@@ -6,7 +6,9 @@ define symbol __ICFEDIT_intvec_start__ = 0x08000000;
 /*-Memory Regions-*/
 define symbol __ICFEDIT_region_ROM_start__    = 0x08000000;
 define symbol __ICFEDIT_region_ROM_end__      = 0x081FFFFF;
-define symbol __ICFEDIT_region_RAM_start__    = 0x20000000;
+define symbol __ICFEDIT_region_NVIC_start__   = 0x20000000;
+define symbol __ICFEDIT_region_NVIC_end__     = 0x200001AF;
+define symbol __ICFEDIT_region_RAM_start__    = 0x200001B0;
 define symbol __ICFEDIT_region_RAM_end__      = 0x2002FFFF;
 define symbol __ICFEDIT_region_CCMRAM_start__ = 0x10000000;
 define symbol __ICFEDIT_region_CCMRAM_end__   = 0x1000FFFF;