Clarify securityALgorithmsUpdated emergency behavior

securityAlgorithmsUpdated should be called by modems when the value of isUnprotectedEmergency changes.

Bug: 317205446
Change-Id: I5e1815458119038495c1c38089bea7db69ae183c
Test: m
diff --git a/radio/aidl/android/hardware/radio/network/IRadioNetworkIndication.aidl b/radio/aidl/android/hardware/radio/network/IRadioNetworkIndication.aidl
index 9c2502d..dde4128 100644
--- a/radio/aidl/android/hardware/radio/network/IRadioNetworkIndication.aidl
+++ b/radio/aidl/android/hardware/radio/network/IRadioNetworkIndication.aidl
@@ -234,10 +234,10 @@
      * signaling, or data connection attempt for a given PLMN and/or access network. Due to
      * power concerns, once a connection type has been reported on, follow-up reports about that
      * connection type are only generated if there is any change to the previously reported
-     * encryption or integrity. Thus the AP is only to be notified when there is new information.
-     * List is reset upon rebooting thus info about initial connections is always passed to the
-     * AP after a reboot. List is also reset if the SIM is changed or if there has been a change
-     * in the access network.
+     * encryption or integrity, or if the value of SecurityAlgorithmUpdate#isUnprotectedEmergency
+     * changes. Thus the AP is only to be notified when there is new information. List is reset upon
+     * rebooting thus info about initial connections is always passed to the AP after a reboot.
+     * List is also reset if the SIM is changed or if there has been a change in the access network.
      *
      * Note: a change only in cell ID should not trigger an update, as the design is intended to
      * be agnostic to dual connectivity ("secondary serving cells").