[XDOT_L151] initial SP for ARM_STD build was set to 0x2008000 instead of 0x20008000 & caused DAPLink to reject FW

Author: mfiore02

hal/targets/cmsis/TARGET_STM/TARGET_STM32L1/TARGET_XDOT_L151CC/TOOLCHAIN_ARM_STD/startup_stm32l151xc.S

@@ -48,7 +48,7 @@
 ;   <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
 ; </h>
 
-__initial_sp    EQU     0x2008000 ; Top of RAM (32 KB)
+__initial_sp    EQU     0x20008000 ; Top of RAM (32 KB)
 
                 PRESERVE8
                 THUMB