ANDROID: kvm: arm64: Handle access to TRFCR_EL1

Rather than falling to an "unhandled access", inject add an explicit
"undefined access" for TRFCR_EL1 access from the guest.

Bug: 174685394
Cc: Marc Zyngier <maz@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/linux-arm-kernel/20210405164307.1720226-6-suzuki.poulose@arm.com/


Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: Idf496c024fc4e0f9a05fceee21ba3f568c56147a