GD: Init flags default in native

Reduce flags duplication by using only GD as source of truth.
This will avoid adding flag and forgetting to put them in the java side

Adding the default value in rust

Bug: 251328572
Test: build (rust)
Test: check logs at bluetooth boot
Merged-In: I317db26698caa477cf71fe30d1be0c91212236ad
Change-Id: I317db26698caa477cf71fe30d1be0c91212236ad
(cherry picked from commit e9d9dd73)