xtensa: remove ELF section address rewriting

(resubmitting after it has been reverted by 0f2a352cbdf1 ('Revert
"xtensa: remove ELF section address rewriting"')

Now rimage can handle both cached and uncached addresses correctly,
ELF rewriting isn't needed any more.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
2 files changed