Only add br_edr to power mode db

Power modes only work with classic/br_edr

Bug: 262479565
Tag: #refactor
Test: gd/cert/run
(cherry picked from https://android-review.googlesource.com/q/commit:272684810473fe72988475eb307f49305b45904a)
Merged-In: I2b28968159df873aabb2c12f7855beae89c6d653
Change-Id: I2b28968159df873aabb2c12f7855beae89c6d653
Bug: 263323082