vboot/vboot_kernel: store kparams pointer instead of copying data

Store kparams as a pointer in vboot_api_kernel.c, rather than a
full struct passed around as a "buffer copy".

This CL is part of a series to merge vboot1 and vboot2.0
kernel verification code; see b/181739551.

BUG=b:181739551
TEST=make clean && make runtests
BRANCH=none

Signed-off-by: Joel Kitching <kitching@google.com>
Change-Id: I7be7280761564c35e928bc947177b3fce61d6215
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/2856360
Tested-by: Joel Kitching <kitching@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Commit-Queue: Joel Kitching <kitching@chromium.org>
4 files changed