Revert "nvmem: qfprom: switch to 4-byte aligned reads"

This reverts commit beb6382a which is
commit 3566a737 upstream.

It breaks the Android kernel build and can be brought back in the future
in an safe way if it is really needed.

Bug: 161946584
Change-Id: I64fa85920cf9346d61ec92a6e15df5ea4c44368f
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>