qcs6490: VP9 fix backported from mailing list

* QCS6490: Fix VP9 decode for SC7280 on venus driver
* QCS6490: Make VP9 Patch work with build system

Author: HeyMeco

patch/kernel/archive/qcs6490-6.18/0050-6.18-VP9-Fix.patch

@@ -0,0 +1,32 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Mecid Urganci <[email protected]>
+Date: Tue, 10 Dec 2025 00:00:00 +0000
+Subject: Fix VP9 decode on SC7280 by restricting EOS quirk to IRIS2
+
+Send NULL EOS addr for only IRIS2 (SM8250), for firmware <= 1.0.87.
+SC7280 also reports "1.0.<hash>" parsed as 1.0.0; restricting to IRIS2
+avoids misapplying this quirk and breaking VP9 decode on SC7280.
+---
+ drivers/media/platform/qcom/venus/vdec.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
+index 111111111111..222222222222 100644
+--- a/drivers/media/platform/qcom/venus/vdec.c
++++ b/drivers/media/platform/qcom/venus/vdec.c
+@@ -566,9 +566,15 @@
+ 			goto unlock;
+ 
+ 		fdata.buffer_type = HFI_BUFFER_INPUT;
+ 		fdata.flags |= HFI_BUFFERFLAG_EOS;
+-		if (IS_V6(inst->core) && is_fw_rev_or_older(inst->core, 1, 0, 87))
++		
++		/* Send NULL EOS addr for only IRIS2 (SM8250),for firmware <= 1.0.87.
++		 * SC7280 also reports "1.0.<hash>" parsed as 1.0.0; restricting to IRIS2
++		 * avoids misapplying this quirk and breaking VP9 decode on SC7280.
++		 */
++
++		if (IS_IRIS2(inst->core) && is_fw_rev_or_older(inst->core, 1, 0, 87))
+ 			fdata.device_addr = 0;
+ 		else
+ 			fdata.device_addr = 0xdeadb000;