Fix for IAR tests

Author: adustm

targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L496xG/device/TOOLCHAIN_IAR/stm32l496xx.icf

@@ -6,8 +6,8 @@ define symbol __region_ROM_end__   = 0x08000000 + 0x100000 - 1;
 /* [RAM = 0x50000] */
 /* Vector table dynamic copy: Total: 107 vectors = 428 bytes (0x1AC) to be reserved in RAM */
 define symbol __NVIC_start__          = 0x20000000;
-define symbol __NVIC_end__            = 0x200001AC; /* Aligned on 8 bytes (428 = 53 x 8) */
-define symbol __region_SRAM1_start__  = 0x20000000;
+define symbol __NVIC_end__            = 0x200001AC - 1;
+define symbol __region_SRAM1_start__  = 0x200001AC; /* Aligned on 8 bytes (428 = 53 x 8) */
 define symbol __region_SRAM1_end__    = 0x2004FFFF;
 
 /* Memory regions */