Update language to comply with Android's inclusive language guidance

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

For this round, the fixes are only applied to the following to minimize breaking dependencies:
  * comments (excluding javaDoc annotations)
	* private constants
	* private functions
	* parameters within functions

BYPASS_INCLUSIVE_LANGUAGE_REASON=Just updating a few select inclusive language violations.
No-Typo-Check: Changes focused on inclusive language violations.
BUG: 295342157
Change-Id: I70dcadc67c13c34edda553897847249e92c26239
diff --git a/keystore/java/android/security/keystore/KeyGenParameterSpec.java b/keystore/java/android/security/keystore/KeyGenParameterSpec.java
index 7afb890..9eed904 100644
--- a/keystore/java/android/security/keystore/KeyGenParameterSpec.java
+++ b/keystore/java/android/security/keystore/KeyGenParameterSpec.java
@@ -1508,7 +1508,7 @@
          * key has purpose {@link android.security.keystore.KeyProperties#PURPOSE_SIGN}. If the key
          * does not have purpose {@link android.security.keystore.KeyProperties#PURPOSE_SIGN}, it is
          * not possible to use the key to sign a certificate, so the public key certificate will
-         * contain a dummy signature.
+         * contain a placeholder signature.
          *
          * <p>Symmetric keys, such as AES and HMAC keys, do not have public key certificates. If a
          * {@link #getAttestationChallenge()} returns non-null and the spec is used to generate a