tpm2_tool: update error output
tpm2_tool: update error output

Update the tool to use the tpm2_error interfaces to
print nice, human readable errors.

Signed-off-by: William Roberts <60148e894dabf0b83bde1d460768794cd453c455@intel.com>

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