Fix legacy monitoring conf

This is to add 2015 and 2016 chains in the list of monitored chains in Legacy Monitoring for trigEgamma, and few typos.

Pinging @cjmeyer @bbatool @eegidiop and @jodafons to keep them in the loop

changed the description

added DQ Egamma Trigger master labels

This merge request affects 1 package:

• Trigger/TrigMonitoring/TrigEgammaMonitoring

added review-pending-level-1 label

Jenkins please retry a build

CI Result SUCCESS (hash f56aa24f)

	Athena	AthSimulation	AthGeneration	AnalysisBase
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 20049]

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit c567d3cc

added sweep:ignore label