ARM: dts: Enable HMP for SA8195, SA8155 and SA6155 VM

Add HMP CPU data for SA8195, SA8155 and SA6155 VM.

Change-Id: I497b243d00e1a5c8b51b7a36daa07f949162e23a
Signed-off-by: subbaramaiah mandava <mandava@codeaurora.org>
Signed-off-by: Ramachandran Venkataramani <ramavenk@codeaurora.org>
Signed-off-by: Venkata Rao kakani <vkakani@codeaurora.org>