docs: Fix servo link
docs: Fix servo link

BRANCH=None
BUG=None
TEST=None

Change-Id: Iadfeb5179a23fd2b58b9edf1e2d8610dbcf67403
Signed-off-by: Neeraj Poojary <0b37c84b5a39d0555494e1cd0bbe7e6f928aad04@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1965760
Reviewed-by: Aseda Aboagye <12c9b286316a940fd31c24070da5ab64cdd4d0e7@chromium.org>

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