qcom/venus-1.8: replace split firmware with the mbn file

Follow the example of the sc7280 and sc7180 (venus-5.4, vpu-2.0) and
replace the split firmare files (mdt + bNN) with the squashed mbn file.
For backwards compatibility generate the mdt -> mbn symlink.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

WHENCE

@@ -5594,12 +5594,8 @@ Licence: Redistributable. See LICENSE.QualcommAtheros_ath10k for details
 
 Driver: venus - Qualcomm Venus video codec accelerator
 
-File: qcom/venus-1.8/venus.mdt
-File: qcom/venus-1.8/venus.b00
-File: qcom/venus-1.8/venus.b01
-File: qcom/venus-1.8/venus.b02
-File: qcom/venus-1.8/venus.b03
-File: qcom/venus-1.8/venus.b04
+File: qcom/venus-1.8/venus.mbn
+Link: qcom/venus-1.8/venus.mdt -> venus.mbn
 
 Version: 1.8-00109
 

qcom/venus-1.8/venus.b04

@@ -1 +0,0 @@
-
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