[26Q2][CDM] Add fitness tracker profile to CDM.

Fitness tracker device profile reuses the permission guard and role from watch device profile, only changing the device name and icon for a more accurate UI representation during the association flow.

Implementation introduces an "aliasing" logic in the role utils, which can prove useful in the future for other cases where a role may need to be reused by another profile, or if a device profile is renamed.

Bug: 420665366
Test: m
Flag: android.companion.band_device_profile
Change-Id: I9494f113969df3b248531434e18579fa175c457f