Rename corstone1000 platform references

In all other SW components and documentation, the corstone1000 is
written all together, without the dash separating the name and
the version. To make TS coherent to all other projects and
documentation sed/corstone-1000/corstone1000/ and rename directories
and files concordantly.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Change-Id: Ied909a0a3d232d30c3bbaec6750b8b1e38db7d0b
6 files changed