Moving adbd from rootdir to system/bin

Bug: 63910933
Test: boot sailfish in normal mode, checks adbd is started
Test: boot sailfish in recovery mode, checks adbd is started
Test: boot bullhead in normal mode, checks adbd is started
Test: boot bullhead in recovery mode, checks adbd is started

Change-Id: I35ed78a15a34626fbd3c21d030e2bf51033f7b79
Merged-In: I35ed78a15a34626fbd3c21d030e2bf51033f7b79
(cherry picked from commit e2423d149b6a5b9119965c097a2a75cb8d052763)
diff --git a/private/file_contexts b/private/file_contexts
index 222167b..4b9d0de 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -270,6 +270,7 @@
 /system/etc/selinux/plat_sepolicy.cil       u:object_r:sepolicy_file:s0
 /system/etc/selinux/plat_and_mapping_sepolicy\.cil\.sha256 u:object_r:sepolicy_file:s0
 /system/bin/vr_hwc               u:object_r:vr_hwc_exec:s0
+/system/bin/adbd                 u:object_r:adbd_exec:s0
 
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 # Vendor files