Add Sensors HAL 2.1

Creates Sensors HAL 2.1 to support the addition of a new sensor type for
hinge angle sensors.

Bug: 144139857
Test: mma
Change-Id: Id78fb16324d28f2291b3ad1950197bfd2632d6f4
diff --git a/current.txt b/current.txt
index 29e95fe..73a18ff 100644
--- a/current.txt
+++ b/current.txt
@@ -693,6 +693,9 @@
 a2977755bc5f1ef47f04b7f2400632efda6218e1515dba847da487145cfabc4f android.hardware.radio.config@1.3::IRadioConfig
 742360c775313438b0f82256eac62fb5bbc76a6ae6f388573f3aa142fb2c1eea android.hardware.radio.config@1.3::IRadioConfigIndication
 0006ab8e8b0910cbd3bbb08d5f17d5fac7d65a2bdad5f2334e4851db9d1e6fa8 android.hardware.radio.config@1.3::IRadioConfigResponse
+3ca6616381080bdd6c08141ad12775a94ae868c58b02b1274ae3326f7de724ab android.hardware.sensors@2.1::ISensors
+3d4141c6373cd9ca02fe221a7d12343840de2255d032c38248fe8e35816b58b2 android.hardware.sensors@2.1::ISensorsCallback
+8051cc50fc90ed447f058a8b15d81f35a65f1bd9004b1de4f127edeb89b47978 android.hardware.sensors@2.1::types
 4a6517ea4ad807855428b0101d8e1a486497bd88ab4300ba3b2be43d46d32580 android.hardware.soundtrigger@2.3::types
 12d7533ff0754f45bf59ab300799074570a99a676545652c2c23abc73cb4515d android.hardware.soundtrigger@2.3::ISoundTriggerHw
 7746fda1fbf9c7c132bae701cc5a161309e4f5e7f3e8065811045975ee86196d android.hardware.usb.gadget@1.1::IUsbGadget