swift: Add dps310 ambient sensor

Swift has 3 ambient temperature sensors, the dps310 will be labeled as
`ambient1` and initially use the same warn/crit temperature
configurations as Witherspoon.

Tested:
    Built image that contained the config file

Change-Id: I85fd2e44fb4229bee04f6cc4a75613e7945ee754
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
2 files changed