Handle javadoc translation for `{@param}` tags

[pjcollins]

The javadoc for DevicePolicyManager#getTrustAgentConfiguration is not translated appropriately:

<javadoc>
<![CDATA[Gets configuration for the given trust agent based on aggregating all calls to
{@link #setTrustAgentConfiguration(ComponentName, ComponentName, PersistableBundle)} for
all device admins.
<p>
This method can be called on the {@link DevicePolicyManager} instance returned by
{@link #getParentProfileInstance(ComponentName)} in order to retrieve the configuration set
on the parent profile.
<p>
On devices not supporting {@link PackageManager#FEATURE_SECURE_LOCK_SCREEN} feature, null is
always returned.

@param admin Which {@link DeviceAdminReceiver} this request is associated with. If null,
this function returns a list of configurations for all admins that declare
{@link #KEYGUARD_DISABLE_TRUST_AGENTS}. If any admin declares
{@link #KEYGUARD_DISABLE_TRUST_AGENTS} but doesn't call
{@link #setTrustAgentConfiguration(ComponentName, ComponentName, PersistableBundle)}
for this {@param agent} or calls it with a null configuration, null is returned.
@param agent Which component to get enabled features for.
@return configuration for the given trust agent.]]>
</javadoc>

The occurrence of {@param agent} causes an issue in our docs:

<param name="admin">Which <c>DeviceAdminReceiver</c> this request is associated with. If null,
    this function returns a list of configurations for all admins that declare
    <c>#KEYGUARD_DISABLE_TRUST_AGENTS</c>. If any admin declares
    <c>#KEYGUARD_DISABLE_TRUST_AGENTS</c> but doesn't call
    <c>#setTrustAgentConfiguration(ComponentName, ComponentName, PersistableBundle)</c>
    for this {</param>
<param name="agent}}">or calls it with a null configuration, null is returned.</param>
<param name="agent">Which component to get enabled features for.</param>
<summary>Gets configuration for the given trust agent based on aggregating all calls to
    <c>#setTrustAgentConfiguration(ComponentName, ComponentName, PersistableBundle)</c> for
    all device admins.</summary>
<returns>configuration for the given trust agent.</returns>