build: Add short targets for RPMs
build: Add short targets for RPMs

N.B. Short targets are based on the name directive in the spec file,
which may differ from the name of the spec file itself.

Signed-off-by: Euan Harris <c3b6e83069c8e9e3af49a38fec6026be89559638@citrix.com>

djs55/planex,djs55/planex,simonjbeaumont/planex,simonjbeaumont/planex,djs55/planex,simonjbeaumont/planex