health: batteryStateOfHealth should be a property

Move batteryStateOfHealth to HealthData

Bug: 251427118
Test: m android.hardware.health-update-api
Change-Id: I8835489f5c3d75ffc48e198a63eafc52b555ccd4
Signed-off-by: AleX Pelosi <apelosi@google.com>
6 files changed