msm: copper: Configure UART on BLSP8 for RUMI

Add new board file for copper gpio configuration and
add gpio configuration for UART on BLSP8 for RUMI.

Change-Id: I4c5b846c448fed8cea079f6a2daa9e5b2dcceff0
Signed-off-by: Sathish Ambley <sambley@codeaurora.org>
4 files changed