tpm2_load: update to YAML output
tpm2_load: update to YAML output

output the loaded handle as:

handle: 0x12345678

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

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