Clarify new setRadioPower documentation

There were some questions on how the new IRadio 1.5 setRadioPower
command should be implemented based on vendor feedback. This CL
clarifies this behavior.

Test: manual
Bug: 143683647
Change-Id: If08741f0ea156a5c2656a47e46f7e1f98bf54ec4
Merged-In: If08741f0ea156a5c2656a47e46f7e1f98bf54ec4
diff --git a/current.txt b/current.txt
index 4048580..9bfabfa 100644
--- a/current.txt
+++ b/current.txt
@@ -644,6 +644,6 @@
 c9273429fcf98d797d3bb07fdba6f1be95bf960f9255cde169fd1ca4db85f856 android.hardware.wifi.supplicant@1.3::ISupplicantStaNetwork
 9b0a3ab6f4f74b971ed094426d8a443e29b512ff03e1ab50c07156396cdb2483 android.hardware.wifi.supplicant@1.3::types
 b0c291c1ee1592b7b12f7bf02bad4cec4bf4f2e41fbd044a9c3885b188114c88 android.hardware.radio@1.5::types
-e5947273509cd23b432c1a0781245a1e5a1dedca77f41db6dbcc02c0d7a7e40a android.hardware.radio@1.5::IRadio
+b454df853441c12f6e425e8a60dd29fda20f5e6e39b93d1103e4b37495db38aa android.hardware.radio@1.5::IRadio
 fcbb0742a88215ee7a6d7ce0825d253eb2b50391fc6c8c48667f9fd7f6d4549e android.hardware.radio@1.5::IRadioIndication
 b9789e8286be3f3390bdef054f38eb7a2052fd9b611613813f5d7e40a465c2c9 android.hardware.radio@1.5::IRadioResponse
diff --git a/radio/1.5/IRadio.hal b/radio/1.5/IRadio.hal
index 6ebbcb4..956f9bd 100644
--- a/radio/1.5/IRadio.hal
+++ b/radio/1.5/IRadio.hal
@@ -238,7 +238,8 @@
      * 1) Emergency call is completed; or
      * 2) Another setRadioPower_1_5 is issued with forEmergencyCall being false or
      * preferredForEmergencyCall being false; or
-     * 3) Timeout after a long period of time.
+     * 3) Timeout after 30 seconds if dial or emergencyDial is not called.
+     * Once one of these conditions is reached, the modem should move into normal operation.
      *
      * @param serial Serial number of request.
      * @param powerOn To turn on radio -> on = true, to turn off radio -> on = false.