package/ptm2human: new package

package/ptm2human: new package

ptm2human is a decoder for trace data outputted by Program
Trace Macrocell (PTM) and Embedded Trace Macrocell (ETMv4).
It deconstructs ID packets and data packets from the
formatter of ARM Coresight ETB, and then translates the
trace data to a human-readable format.

./utils/test-pkg --package ptm2human --all
44 builds, 29 skipped, 0 build failed, 0 legal-info failed

Signed-off-by: Julien Olivain <juju@cotds.org>
[yann.morin.1998@free.fr:
  - drop the host variant
  - introduce _ARCH_SUPPORTS
  - comment why we need autoreconf
  - drop spurious empty line
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>