arm64: dts: qcom: lenovo630: Add Modem firmware files

By specifying the modem firmware files, we can boot the modem subsystem
which also gives us wifi.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Link: https://lore.kernel.org/r/20200528185341.4891-1-jeffrey.l.hugo@gmail.com


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>