qcom: venus-5.4: update firmware binary for sc7180 and qcs615

QCS615 uses the same video core as sc7180, so update the firmware binary
which can be used for both the SoCs.
Delete "venus_s6.mbn" since no SoC is currently using this.

Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Acked-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>

WHENCE

@@ -6211,9 +6211,8 @@ Version: 5.2-00023
 
 File: qcom/venus-5.4/venus.mbn
 Link: qcom/venus-5.4/venus.mdt -> venus.mbn
-File: qcom/venus-5.4/venus_s6.mbn
 
-Version: VIDEO.VE.5.4-00058-PROD-4
+Version: VIDEO.VE.5.4-00059-PROD-1
 
 File: qcom/venus-6.0/venus.mbn