configure: Change Error Message from tpm2_server to tpm_server
configure: Change Error Message from tpm2_server to tpm_server

Change the configure script so when it cannot find the tpm_server,
it now prints a message that the tpm_server is not found
(instead of the misleading error message that tpm2_server is not found).

Fixes #990.

Signed-off-by: Dan Anderson <8be6c5bcd7b3ecb36751de5a157aa00817bebea0@intel.com>

martinezjavier/tpm2-tools,01org/tpm2.0-tools,martinezjavier/tpm2-tools,martinezjavier/tpm2-tools,01org/tpm2.0-tools,01org/tpm2.0-tools,martinezjavier/tpm2-tools