Fixes test-acceptance job's params
Fixes test-acceptance job's params

We changed the param to BOSH_LITE_PRIVATE_KEY_DATA to represent that
this was not a key file path but the raw key data.  This parameter must
match the one in the task configuration (yml) and in the task script (sh)

[#94624368](https://www.pivotaltracker.com/story/show/94624368)
Signed-off-by: Hua Zhang <acecdb50c47454737d0b9a0b29c19169fafbd4f7@cn.ibm.com>

allomov/bosh-init,cloudfoundry/bosh-init,cloudfoundry/bosh-init,forrestsill/bosh-init,allomov/bosh-init,forrestsill/bosh-init,cloudfoundry/bosh-init,allomov/bosh-init,forrestsill/bosh-init