feat(Reset_Handler): Call extern BoardInit() function for early hardware initialization

Author: FoniksFox

Inc/ST-LIB.hpp

@@ -342,3 +342,10 @@ template <auto&... devs> struct Board {
 };
 
 } // namespace ST_LIB
+
+/**
+ * @brief   This is a function that gets called early in the startup process,
+ *          before the global constructors and main() are called.
+ *          It is responsible for initializing the hardware and peripherals
+ */
+extern void BoardInit(void);

StartupCode.s

@@ -62,6 +62,9 @@ Reset_Handler:
   b     .L_loop_zero_table
 .L_done_zero_table:
 
+/* Call board init (user defined function) */
+  bl  BoardInit
+
 /* Call static constructors */
   bl __libc_init_array