Fix the KVM scripts to set up LinuxHost correctly.
Fix the KVM scripts to set up LinuxHost correctly.

The previous version of the run_kvm.sh script always started LinuxHost
with a SoftTao, and this didn't work when the domain was set up to use a
TPM. This adds a TYPE variable that allows the caller to specify this
parameter on the command line.

William-J-Earl/cloudproxy,tmroeder/cloudproxy,jlmucb/cloudproxy,jlmucb/cloudproxy,tmroeder/cloudproxy,cjpatton/cloudproxy,kevinawalsh/cloudproxy,William-J-Earl/cloudproxy,William-J-Earl/cloudproxy,tmroeder/cloudproxy,cjpatton/cloudproxy,William-J-Earl/cloudproxy,cjpatton/cloudproxy,William-J-Earl/cloudproxy,jethrogb/cloudproxy,cjpatton/cloudproxy,jethrogb/cloudproxy,jethrogb/cloudproxy,jethrogb/cloudproxy,jlmucb/cloudproxy,kevinawalsh/cloudproxy,tmroeder/cloudproxy,jethrogb/cloudproxy,jlmucb/cloudproxy,cjpatton/cloudproxy,tmroeder/cloudproxy,jlmucb/cloudproxy