sysmobts calibration: Load further tables even if one fails
sysmobts calibration: Load further tables even if one fails

Even if one calibration table cannot be loaded, continue to try to
load the other tables, instead of aborting very early.

geosphere/osmo-bts,geosphere/osmo-bts,osmocom/osmo-bts,telenoobie/osmo-bts,telenoobie/osmo-bts,osmocom/osmo-bts,telenoobie/osmo-bts,telenoobie/osmo-bts,geosphere/osmo-bts,osmocom/osmo-bts,geosphere/osmo-bts