SIM slot related interface changes

Add below new interfaces, corresponding response interface and structures.
- getSimSlotsStatus()
- setSimSlotsMapping()
- simSlotsStatusChanged()

Bug: 68998818
Test: compliation

Change-Id: Ia532c502782ef4d08d27f18ee0321a3ceaa94dcf
diff --git a/radio/1.2/IRadioIndication.hal b/radio/1.2/IRadioIndication.hal
index 5d3efcf..4aae74d 100644
--- a/radio/1.2/IRadioIndication.hal
+++ b/radio/1.2/IRadioIndication.hal
@@ -28,4 +28,13 @@
      * Incremental network scan results
      */
     oneway networkScanResult_1_2(RadioIndicationType type, NetworkScanResult result);
-};
\ No newline at end of file
+
+    /**
+     * Indicates SIM slot status change.
+     *
+     * @param type Type of radio indication
+     * @param slotStatus new slot status info with size equals to the number of physical slots on
+     *        the device
+     */
+    oneway simSlotsStatusChanged(RadioIndicationType type, vec<SimSlotStatus> slotStatus);
+};