Fixed the description of memory_total_kib rrd datasource. It is memory "in the host", not "in use".
Fixed the description of memory_total_kib rrd datasource.
It is memory "in the host", not "in use".

Signed-off-by: Thomas Sanders <c547603d2dd860735c4f0c043b1348f5c48c02f8@citrix.com>

simonjbeaumont/xcp-rrdd,koushikcgit/xcp-networkd,koushikcgit/xcp-networkd,djs55/xcp-networkd,djs55/xcp-rrdd,koushikcgit/xcp-rrdd,simonjbeaumont/xcp-rrdd,djs55/xcp-rrdd,johnelse/xcp-rrdd,johnelse/xcp-rrdd,djs55/xcp-networkd,sharady/xcp-networkd,koushikcgit/xcp-rrdd,sharady/xcp-networkd,koushikcgit/xcp-rrdd