Revert "Revert DynamicChangelog for new mGerrit generated changelog"

This reverts commit c58f3f95338a2d99454c1ef191c4ae68d00b2a6e.
ROMControl: Remove Duplicate String

Commit was rebased and this accidentally
    added back

Change-Id: Ie5bfdee86a619c55bece2be8b60dbd595cfa735b