Merge pull request #3730 from adrian-stepien/dev/bootrom-common-init

Include COMMON globals in bootrom BSS initialization

bootrom/ldscript-flash-common

@@ -63,11 +63,14 @@ SECTIONS
         __bss_start__ = .;
         *(.bss)
         *(.bss.*)
+        *(COMMON)
         . = ALIGN(4);
         __bss_end__ = .;
     } >ram AT>ram :bss
 
+    ASSERT(__bss_end__ == ADDR(.bss) + SIZEOF(.bss), "BSS boundary excludes globals")
+
     .commonarea (NOLOAD) : {
         *(.commonarea)
     } >commonarea
-}
+}