LE audio: Check the HAL version is newer than HIDL 2.1

The LE audio thing doesn't only support on HIDL HAL 2.1. We need to change the logic that it could be supported after HIDL HAL 2.1

Bug: 205080142
Bug: 150670922
Test: Bluetooth could turn on with newer HIDL HAL (2.2)
Change-Id: I8c4e445de59b6ec417b2d17f7606ac9305759c11