The Qualcomm SDM845 platform has a modem-less version, called SDA845.
It still has the modem DSP, which is used for WiFi, GNSS, etc. The
firmware in the qcom/sdm845 dir comes from the Thundercomm RB3 board,
which internally has the SDA845 SoC rather than the full SDM845.
The SC8180X platform (not yet added to linux-firmware) started using
modem.mbn and modem_nm.mbn, the latter being used for no-modem
platforms.
Follow this example and rename qcom/sdm845/modem.mbn firmware
file to modem_nm.mbn. This commit adds a compatibility link for now, to
let the device trees to be adapted to this change. It should be removed
when the proper qcom/sdm845/modem.mbn is submitted.
Cc: Caleb Connolly <caleb.connolly@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>