cmd/goyacc: quadruple the max states and actions

This commit quadruples the maximum number of states and the size of the
action table to allow for larger grammars.

Fixes golang/go#11517

Change-Id: Ieb64efa8e3402ae1a5a9190710f98a44195ecd1b
Reviewed-on: https://go-review.googlesource.com/33585
Reviewed-by: Ian Lance Taylor <iant@golang.org>
1 file changed