Staging: ipack/bridges/tpci200: remove TPCI200_SHORTNAME constant

Removed TPCI200_SHORTNAME. For the pr_* the name of the module is already
included due to pr_fmt declaration.

In other cases, KBUILD_MODNAME is used instead.

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>