Fix missing dependency in 'src/hs2py-constants'
Fix missing dependency in 'src/hs2py-constants'

Fix target 'src/hs2py-constants' because it must depend on
'src/AutoConf.hs'. Fixes issue 573.

Signed-off-by: Jose A. Lopes <0fb9c4f8511df4ec2ae28af879e9d462f6218a2c@google.com>
Reviewed-by: Klaus Aehlig <4ce51de36d9068cd7db2eec1151e0f3f95419008@google.com>

ganeti/ganeti,yiannist/ganeti,ganeti-github-testing/ganeti-test-1,yiannist/ganeti,bitemyapp/ganeti,apyrgio/ganeti,yiannist/ganeti,ganeti/ganeti,onponomarev/ganeti,ganeti-github-testing/ganeti-test-1,andir/ganeti,leshchevds/ganeti,dimara/ganeti,onponomarev/ganeti,leshchevds/ganeti,leshchevds/ganeti,apyrgio/snf-ganeti,mbakke/ganeti,apyrgio/ganeti,andir/ganeti,grnet/snf-ganeti,grnet/snf-ganeti,andir/ganeti,mbakke/ganeti,apyrgio/snf-ganeti,bitemyapp/ganeti,dimara/ganeti,ganeti/ganeti,mbakke/ganeti