configure.ac: Fix logic error that caused TCTIs to be disabled when --with-tcti-* provided.
configure.ac: Fix logic error that caused TCTIs to be disabled when --with-tcti-* provided.

This patch resolves an error in the logic used in the processing of
--[with|without]-tcti-* options to the configure script. The desired
functionality that this fix implements is:

1) If --without-tcti-* is provided, disable said TCTI. Don't attempt to
detect its presence on the platform.
2) If --with-tcti-* is provided, build with the requested TCTI enabled,
display error if it's not detected on the platform.
3) If neither with/without is provided, check to see if the TCTI is
detected. If so, enable it. If not, disable it with no errors.
4) Ensure that at least one TCTI is enabled. If not, display an error.

Signed-off-by: Philip Tricca <53a58e9d5471ed7186e9729c1e05c03a7332643a@twobit.us>

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