V2: Create Multi-HAL 2.1 service

Bug: 149758467
Test: Verify that the new unit tests and subhals in this topic load and
run on a Pixel device

Change-Id: I275274659816b3a00374fb0b7a93f199874afdcd
diff --git a/sensors/2.1/multihal/OWNERS b/sensors/2.1/multihal/OWNERS
new file mode 100644
index 0000000..e955670
--- /dev/null
+++ b/sensors/2.1/multihal/OWNERS
@@ -0,0 +1,3 @@
+arthuri@google.com
+bduddie@google.com
+stange@google.com
\ No newline at end of file