Add OSD (MSP Displayport) option to port peripherals

[SteveCEvans]

This PR compliments betaflight/betaflight#11913 which removes displayport_msp_serial and instead uses the first port with the FUNCTION_MSP_DISPLAYPORT flag set, for connection to a suitable VTX.

This PR adds an extra port peripheral option thus:

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
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0.0% Duplication

[haslinghuis]

Something wrong with workflow environment, lately have to manually restart runs to build correctly. Seems we are on throttle.

[github-actions]

Do you want to test this code? Here you have an automated build:
Betaflight-Configurator-Android
Betaflight-Configurator-Linux
Betaflight-Configurator-macOS
Betaflight-Configurator-Windows
WARNING: It may be unstable and result in corrupted configurations or data loss. Use only for testing!

[blckmn]

AUTOMERGE: (FAIL)

• github identifies PR as mergeable -> PASS
• assigned to a milestone -> PASS
• cooling off period lapsed -> PASS
• commit count less or equal to three -> PASS
• Don't merge label NOT found -> PASS
• at least one RN: label found -> PASS
• Tested label found -> FAIL
• assigned to an approver -> FAIL
• approver count at least three -> FAIL