board: dragonboard820c: use LINUX_KERNEL_IMAGE_HEADER

db820c predated support for prepending the kernel image header
automatically, drop it's custom linker script and head.S in favour of
this generic support.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Tested-by: Sumit Garg <sumit.garg@linaro.org> #qcs404
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
4 files changed