Update HAL comment of AGC

Bug: 179157665
Test: doc update only
Change-Id: I9395a68d3154e8b4e47fd2fb6b0d8f5f33e48805
diff --git a/gnss/1.0/IGnssMeasurementCallback.hal b/gnss/1.0/IGnssMeasurementCallback.hal
index d219af0..603680d 100644
--- a/gnss/1.0/IGnssMeasurementCallback.hal
+++ b/gnss/1.0/IGnssMeasurementCallback.hal
@@ -644,22 +644,19 @@
          */
         double snrDb;
 
-        /**
-         * Automatic gain control (AGC) level. AGC acts as a variable gain
-         * amplifier adjusting the power of the incoming signal. The AGC level
-         * may be used to indicate potential interference. When AGC is at a
-         * nominal level, this value must be set as 0. Higher gain (and/or lower
-         * input power) must be output as a positive number. Hence in cases of
-         * strong jamming, in the band of this signal, this value must go more
-         * negative.
-         *
-         * Note: Different hardware designs (e.g. antenna, pre-amplification, or
-         * other RF HW components) may also affect the typical output of of this
-         * value on any given hardware design in an open sky test - the
-         * important aspect of this output is that changes in this value are
-         * indicative of changes on input signal power in the frequency band for
-         * this measurement.
-         */
+
+    /**
+     * Automatic gain control (AGC) level. AGC acts as a variable gain amplifier adjusting the power
+     * of the incoming signal. The AGC level may be used to indicate potential interference. Higher
+     * gain (and/or lower input power) must be output as a positive number. Hence in cases of strong
+     * jamming, in the band of this signal, this value must go more negative. This value must be
+     * consistent given the same level of the incoming signal power.
+     *
+     * Note: Different hardware designs (e.g. antenna, pre-amplification, or other RF HW components)
+     * may also affect the typical output of this value on any given hardware design in an open sky
+     * test - the important aspect of this output is that changes in this value are indicative of
+     * changes on input signal power in the frequency band for this measurement.
+     */
         double agcLevelDb;
     };