Fix Mac build. (#5498)
Fix Mac build. (#5498)

https://github.com/project-chip/connectedhomeip/pull/5383 removed
kManualSetupDiscriminatorFieldBitMask which breaks the Mac build.
project-chip/connectedhomeip,nestlabs/connectedhomeip,project-chip/connectedhomeip,nestlabs/connectedhomeip,nestlabs/connectedhomeip,nestlabs/connectedhomeip,project-chip/connectedhomeip,nestlabs/connectedhomeip,project-chip/connectedhomeip,nestlabs/connectedhomeip,project-chip/connectedhomeip,nestlabs/connectedhomeip,project-chip/connectedhomeip