Add build feature to guard enable speed-profile compilation for Connectivity service.

Bug: 241823638
Test: `m`
Test: with flag on: go/art-benchmark?p=BootImageProfileId:41874 (code size reduction by -10.82MB)
Test: with flag off: go/art-benchmark?p=BootImageProfileId:41898 (no code change or metric changes)
Change-Id: I32a0b90d619e3ef4d5623969df4f71645813ae8c
1 file changed