ec_commands: Be sure all C code is within #ifnef ACPI
ec_commands: Be sure all C code is within #ifnef ACPI

When __ACPI__ is set, only #define are allowed.

BRANCH=none
BUG=chrome-os-partner:52433
TEST=Coreboot compiles with this code.

Change-Id: Iadb3893960f16ff49aa4f4e5871d5d17cbb87642
Signed-off-by: Gwendal Grignou <190c5a5edfcf62e0246559bf31fa7548674de3ad@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/355570
Reviewed-by: Randall Spangler <62698fdbb84d1779579ee80c3f39fac22017e5bc@chromium.org>
Reviewed-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@google.com>

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