Update description of git_basic_auth_policy field in AuthInfo

There was a mismatch with what is documented for the
auth.gitBasicAuthPolicy parameter in gerrit.config.

Change-Id: I9d34af443419f09320083bd984feb966fcfe86f7
Signed-off-by: Edwin Kempin <ekempin@google.com>

Documentation/rest-api-config.txt

diff --git a/Documentation/rest-api-config.txt b/Documentation/rest-api-config.txt
index affe1ea..e9e3b94 100644
--- a/Documentation/rest-api-config.txt
+++ b/Documentation/rest-api-config.txt
@@ -1477,8 +1477,8 @@
 |`git_basic_auth_policy`      |optional|
 The link:config-gerrit.html#auth.gitBasicAuthPolicy[policy] to authenticate
 Git over HTTP and REST API requests when
-link:config-gerrit.html#auth.type[authentication type] is `LDAP`.
-Can be `HTTP`, `LDAP` or `HTTP_LDAP`.
+link:config-gerrit.html#auth.type[authentication type] is `LDAP`,
+`LDAP_BIND` or `OAUTH`. Can be `HTTP`, `LDAP`, `HTTP_LDAP` or `OAUTH`.
 |==========================================
 
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