Clarifying documentation for SUPL ES configuration

Test: Builds (comment change only)
Change-Id: Idbcb40eaeff31ec1bb5c4ab45fb8f42de9bc1e20
diff --git a/current.txt b/current.txt
index 6958edb..86311c0 100644
--- a/current.txt
+++ b/current.txt
@@ -249,3 +249,6 @@
 09342041e17c429fce0034b9096d17849122111436a5f0053e7e59500e1cb89c android.hardware.media.omx@1.0::IOmxStore
 f4945e397b5dea41bb64518dfde59be71245d8a125fd1e0acffeb57ac7b08fed android.hardware.thermal@1.1::IThermal
 c8bc853546dd55584611def2a9fa1d99f657e3366c976d2f60fe6b8aa6d2cb87 android.hardware.thermal@1.1::IThermalCallback
+
+# ABI preserving changes to HALs during Android P
+fb92e2b40f8e9d494e8fd3b4ac18499a3216342e7cff160714c3bbf3660b6e79 android.hardware.gnss@1.0::IGnssConfiguration
diff --git a/gnss/1.0/IGnssConfiguration.hal b/gnss/1.0/IGnssConfiguration.hal
index e315286..75aee7c 100644
--- a/gnss/1.0/IGnssConfiguration.hal
+++ b/gnss/1.0/IGnssConfiguration.hal
@@ -78,9 +78,13 @@
      */
 
      /**
-      * This method enables or disables emergency SUPL.
+      * This method enables or disables NI emergency SUPL restrictions.
       *
-      * @param enabled True if emergency SUPL is to be enabled.
+      * @param enabled True if the device must only accept NI Emergency SUPL requests when the
+      *                     device is truly in emergency mode (e.g. the user has dialed 911, 112,
+      *                     etc...)
+      *                False if the device must accept NI Emergency SUPL any time they are
+      *                      received
       *
       * @return success True if operation was successful.
       */