This includes gcc8.1 fixes and the image is compiled using gcc 8.1 as well.

The full list of changes is:
  > Fix bad assembler statements for compiling with gcc 8.1 / as 2.30
  > libelf: Add REL32 to the list of ignored relocations

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>