homestar: Disable CMD help to free some flash size
homestar: Disable CMD help to free some flash size

Undefine CONFIG_CONSOLE_CMDHELP to save some flash size

BUG=None
BRANCH=None
TEST=make BOARD=homestar

Signed-off-by: Tomasz Michalec <a547db31280d14f095c760a23a7523d0b1e55fe6@semihalf.com>
Change-Id: I122b5a98351030ff2784c616a780f2b7bb622569
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3831540
Tested-by: Tomasz Michalec <c064a6042954d4ba0805003dc021b76413ff1548@google.com>
Commit-Queue: Tomasz Michalec <c064a6042954d4ba0805003dc021b76413ff1548@google.com>
Reviewed-by: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>

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