audio: fix aidl strategy name mapping error

When getDevicesForProductStrategy, the strategy is obtained from mLegacyStrategyMap,
mLegacyStrategyMap will compare the strategy name from aidl with the predefined
getLegacyStrategy through getProductStrategyByName.
legacy.name in aidl2legacy_AudioHalProductStrategy_ProductStrategy and
getLegacyStrategy definition cannot match.

Change-Id: I9689e05fb7dfc8418d2aef599c856cd2cba54763
Signed-off-by: chenxin20 <chenxin20@xiaomi.com>