Update language to comply with Android's inclusive language guidance

See https://source.android.com/setup/contribute/respectful-code
for reference.

Bug: 161896447
Test: m ; atest FrameworkNetTests
Change-Id: Ib6b4c9526992c31e05e82be80e2b9b86bc0b57ef
diff --git a/services/core/java/com/android/server/IpSecService.java b/services/core/java/com/android/server/IpSecService.java
index 6402e07..b2f0c83 100644
--- a/services/core/java/com/android/server/IpSecService.java
+++ b/services/core/java/com/android/server/IpSecService.java
@@ -1477,7 +1477,7 @@
     }
 
     /**
-     * Checks an IpSecConfig parcel to ensure that the contents are sane and throws an
+     * Checks an IpSecConfig parcel to ensure that the contents are valid and throws an
      * IllegalArgumentException if they are not.
      */
     private void checkIpSecConfig(IpSecConfig config) {