ectool: Check address of comm_init_lpc/_i2c before calling them
ectool: Check address of comm_init_lpc/_i2c before calling them

This patch makes ectool check the address of comm_init_lpc and
comm_init_i2c before calling them.

Related bug:b/35571850

Signed-off-by: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>

BUG=b/122478187
BRANCH=none
TEST=buildall

Change-Id: I32499174d7f82e45941cd97cf7780ea04517115f
Reviewed-on: https://chromium-review.googlesource.com/1414706
Commit-Ready: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>
Tested-by: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>
Reviewed-by: Gwendal Grignou <190c5a5edfcf62e0246559bf31fa7548674de3ad@google.com>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec