Revert "fix(I3C): Increase minimum stack size for (H503RB - H563ZI)"

This reverts commit bc21685.

Author: Aymane-ST

variants/STM32H5xx/H503RBT/ldscript.ld

@@ -40,7 +40,7 @@ _estack = ORIGIN(RAM) + LENGTH(RAM); /* end of "RAM" Ram type memory */
 _sstack = _estack - _Min_Stack_Size;
 
 _Min_Heap_Size = 0x200;  /* required amount of heap */
-_Min_Stack_Size = 0x1000; /* required amount of stack */
+_Min_Stack_Size = 0x400; /* required amount of stack */
 
 /* Memories definition */
 MEMORY {

variants/STM32H5xx/H563Z(G-I)T_H573ZIT/ldscript.ld

@@ -40,7 +40,7 @@ _estack = ORIGIN(RAM) + LENGTH(RAM); /* end of "RAM" Ram type memory */
 _sstack = _estack - _Min_Stack_Size;
 
 _Min_Heap_Size = 0x200; /* required amount of heap */
-_Min_Stack_Size = 0x2000; /* required amount of stack */
+_Min_Stack_Size = 0x400; /* required amount of stack */
 
 /* Memories definition */
 MEMORY