arm64: defconfig: Enable Qualcomm QRTR

The QRTR packet family is used for a wide range of communication between
services in Qualcomm platforms. Examples of services using this
transport for communication are remoteproc management, modem control,
positioning, power management and WiFi.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>