Add ARM basic bootloader build

arm/bootloader.ld

@@ -0,0 +1,32 @@
+MEMORY
+{
+    ICTM (rwx) : ORIGIN = 0x00000000, LENGTH = 16384
+}
+
+SECTIONS
+{
+    .text :
+    {
+        KEEP(vector_table.o(.vector_table))
+
+        *(.text*)
+        *(.rodata*)
+    } > ICTM
+
+    .bss (NOLOAD) :
+    {
+        _bss_begin = .;
+        *(.bss*)
+        *(COMMON)
+        _bss_end = .;
+    } > ICTM
+
+    .data :
+    {
+        *(.data*)
+
+        __exidx_start = .;
+        *(.exidx*)
+        __exidx_end = .;
+    } > ICTM
+}