Update gpg key for cco3@android.com

cco3@android.com has a new gpg key, so this needs to be updated in the
repo scripts so that he can sign updates.

Change-Id: I9f058263b35bd027502d6e3b814d7aeb801a1e6e
diff --git a/repo b/repo
index 58e82fe..af1978e 100755
--- a/repo
+++ b/repo
@@ -21,10 +21,10 @@
 # limitations under the License.
 
 # increment this whenever we make important changes to this script
-VERSION = (1, 19)
+VERSION = (1, 20)
 
 # increment this if the MAINTAINER_KEYS block is modified
-KEYRING_VERSION = (1, 1)
+KEYRING_VERSION = (1, 2)
 MAINTAINER_KEYS = """
 
      Repo Maintainer <repo@android.kernel.org>
@@ -73,32 +73,32 @@
 -----BEGIN PGP PUBLIC KEY BLOCK-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
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-=O7am
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+=AUp4
 -----END PGP PUBLIC KEY BLOCK-----
 """