control:configs: Add altitude group to Rainier 4Us

The altitude is used by actions in the Rainier 4U and 1S4U, but was
missing from the groups.json files. This caused the altitude offsets
used by the mapped floor action to always be zero.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I46748a9dfe5f054964c11ae28009c0c73b23b1fc
2 files changed