Move rild to vendor partition.

Test: Basic telephony sanity
Bug: 35672432
Change-Id: I7d17cc7efda9902013c21d508cefc77baccc06a8
diff --git a/vendor/file_contexts b/vendor/file_contexts
index 7fda294..bce40df 100644
--- a/vendor/file_contexts
+++ b/vendor/file_contexts
@@ -21,6 +21,7 @@
 /(vendor|system/vendor)/bin/hw/android\.hardware\.nfc@1\.0-service            u:object_r:hal_nfc_default_exec:s0
 /(vendor|system/vendor)/bin/hw/android\.hardware\.power@1\.0-service          u:object_r:hal_power_default_exec:s0
 /(vendor|system/vendor)/bin/hw/android\.hardware\.sensors@1\.0-service        u:object_r:hal_sensors_default_exec:s0
+/(vendor|system/vendor)/bin/hw/rild                                           u:object_r:rild_exec:s0
 /(vendor|system/vendor)/bin/hw/android\.hardware\.thermal@1\.0-service        u:object_r:hal_thermal_default_exec:s0
 /(vendor|system/vendor)/bin/hw/android\.hardware\.usb@1\.0-service            u:object_r:hal_usb_default_exec:s0
 /(vendor|system/vendor)/bin/hw/android\.hardware\.vibrator@1\.0-service       u:object_r:hal_vibrator_default_exec:s0