qcom: update path for video firmware for vpu-1/2/3.0

- Rename qcom/vpu-3.0/ to qcom/vpu/ to have common sub-folder for
  new firmware files.
- Move firmware files from vpu-1.0/ and vpu-2.0/ to vpu/ with
  proper names for firmware binaries and provide backwards-compatible
  links.

Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>

WHENCE

@@ -5963,12 +5963,13 @@ File: qcom/venus-6.0/venus.mbn
 
 Version: VIDEO.VE.6.0-00049-PROD-1
 
-File: qcom/vpu-1.0/venus.mbn
-Link: qcom/vpu-1.0/venus.mdt -> venus.mbn
+File: qcom/vpu/vpu20_p4.mbn
+Link: qcom/vpu-1.0/venus.mbn -> ../vpu/vpu20_p4.mbn
 
 Version: VIDEO.VPU.1.0-00087-PROD-1
 
-File: qcom/vpu-2.0/venus.mbn
+File: qcom/vpu/vpu20_p1.mbn
+Link: qcom/vpu-2.0/venus.mbn -> ../vpu/vpu20_p1.mbn
 
 Version: VIDEO.VPU.2.0-00049-PROD-1
 
@@ -5981,7 +5982,7 @@ https://developer.qualcomm.com/hardware/dragonboard-410c/tools
 
 Driver: iris - Qualcomm Iris video codec accelerator
 
-File: qcom/vpu-3.0/vpu30_4v.mbn
+File: qcom/vpu/vpu30_p4.mbn
 
 Version: VIDEO.VPU.3.1-0076