Fix mqtt bridge fields, based on merge v5.0.7

[JimMoen]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 2979780107

• 14 of 34 (41.18%) changed or added relevant lines in 2 files are covered.
• 33 unchanged lines in 9 files lost coverage.
• Overall coverage decreased (-0.09%) to 77.305%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
apps/emqx_connector/src/emqx_connector_ssl.erl	12	32	37.5%

Files with Coverage Reduction	New Missed Lines	%
apps/emqx_bridge/src/emqx_bridge.erl	1	85.11%
apps/emqx/src/emqx_router_helper.erl	1	86.27%
apps/emqx/src/emqx_shared_sub.erl	2	90.48%
apps/emqx_gateway/src/emqx_gateway_cm.erl	3	73.45%
apps/emqx_gateway/src/exproto/emqx_exproto_gsvr.erl	3	63.27%
apps/emqx_connector/src/emqx_connector_mqtt.erl	4	72.13%
apps/emqx_connector/src/emqx_connector_ssl.erl	4	32.43%
apps/emqx_dashboard/src/emqx_dashboard_listener.erl	4	73.91%
apps/emqx/src/emqx_reason_codes.erl	11	88.24%

Totals
Change from base Build 2979274509:	-0.09%
Covered Lines:	20584
Relevant Lines:	26627

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💛 - Coveralls