arm64: defconfig: Build NSS Clock Controller driver for IPQ9574

arm64: defconfig: Build NSS Clock Controller driver for IPQ9574

NSSCC driver is needed to enable the ethernet interfaces present
in RDP433 based on IPQ9574. Since this is not necessary for bootup
enabling it as a module.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Devi Priya <quic_devipriy@quicinc.com>
Signed-off-by: Manikanta Mylavarapu <quic_mmanikan@quicinc.com>
Link: https://lore.kernel.org/r/20250313110359.242491-7-quic_mmanikan@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>