Move mkamsboot into the rbutil/mkamsboot/ directory - no other changes, so this should still work the same as before.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18706 a1c6a512-1295-4272-9138-f99709370657
diff --git a/rbutil/mkamsboot/README b/rbutil/mkamsboot/README
new file mode 100644
index 0000000..bf9ea69
--- /dev/null
+++ b/rbutil/mkamsboot/README
@@ -0,0 +1,10 @@
+mkamsboot
+---------
+
+A tool to inject some code (contained in test.S) into a firmware file.
+
+Edit the INFILE variable in the Makefile to point to the original
+firmware file you want to patch, edit "test.S" appropriately, and then
+type "make".
+
+