packer_freebsd.json: update script

Signed-off-by: Arthur She <arthur.she@linaro.org>
Change-Id: I334c2455b622e92fd58fefcea8e452978d319a41
diff --git a/packer_freebsd.json b/packer_freebsd.json
index 64cadb9..e148375 100644
--- a/packer_freebsd.json
+++ b/packer_freebsd.json
@@ -47,6 +47,7 @@
       "execute_command": "chmod +x {{.Path}}; /bin/sh  {{.Path}}",
       "inline": [
         "echo 'ssh-rsa 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 tf-staging-key' > /home/ec2-user/.ssh/authorized_keys",
+        "echo 'ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCSF9HT6oMDD+7ztIlQmUtCz8qcfS+5MUEnABudsKAFW2ih7XyyLD5xXYZIeMvQLo65Mfzi5DGKBs85Kaw7kLCiNkaU4a8OzjipUfjM0QyHbMo5wjChBhMxqIyx9NK8lpcBPeJquUns07sXs+NRxQ/yc9QQ1kLf61vWPim+R+PW2f0aL+GGTYlZq/v4Ik1GHahSM/5g51skGOsUeh1w4qhlNvE3VQFGQT4rqlnzQDmmhdIjfEJhp574ldwOOALm50OWa62auVPAGwcDujqf/GoX/HMugxVaKryDyrTu+5+lMPUbizf8Lhu4UuBfCPeK0K/gbhdn5M4d4mc0Qd4oaRf5' >> /home/ec2-user/.ssh/authorized_keys",
         "chmod 600 /home/ec2-user/.ssh/authorized_keys"
       ]
     },