fix: wire redox-drm handoff patches

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

local/patches/redox-drm/P6-pcid-coordinate-handoff.patch

@@ -0,0 +1,28 @@
+--- a/src/main.rs
++++ b/src/main.rs
+@@ -21,6 +21,7 @@ use redox_driver_sys::pci::{
+     PCI_VENDOR_ID_AMD, PCI_VENDOR_ID_INTEL,
+ };
++use redox_driver_sys::pcid_client::PcidClient;
+ use redox_driver_sys::quirks::PciQuirkFlags;
+ use redox_scheme::{SignalBehavior, Socket};
+ 
+@@ -164,6 +165,19 @@ fn select_gpu_from_args() -> Result<PciDeviceInfo> {
+         });
+     }
+ 
++    if let Some(mut pcid) = PcidClient::connect_default() {
++        let function = pcid.request_config().map_err(|e| {
++            DriverError::Pci(format!("failed to read pcid-spawner handoff config: {e}"))
++        })?;
++        let info = function.device_info();
++        info!(
++            "redox-drm: selected GPU from pcid-spawner handoff at {}",
++            info.location
++        );
++        return Ok(info);
++    }
++
+     let devices = enumerate_pci_class(PCI_CLASS_DISPLAY)
+         .map_err(|e| DriverError::Pci(format!("PCI scan failed: {e}")))?;
+     let first = devices

local/recipes/gpu/redox-drm/P6-pcid-coordinate-handoff.patch

@@ -0,0 +1 @@
+../../../patches/redox-drm/P6-pcid-coordinate-handoff.patch

local/recipes/gpu/redox-drm/recipe.toml

@@ -1,6 +1,6 @@
 [source]
 path = "source"
-patches = ["P1-intel-gen-gate.patch", "P2-intel-display-fixes.patch", "P3-intel-gen8-gen9-firmware.patch", "P4-virtio-gpu-driver.patch", "P5-virtio-auto-probe.patch"]
+patches = ["P1-intel-gen-gate.patch", "P2-intel-display-fixes.patch", "P3-intel-gen8-gen9-firmware.patch", "P4-virtio-gpu-driver.patch", "P5-virtio-auto-probe.patch", "P6-pcid-coordinate-handoff.patch", "P7-unreachable-pattern-cleanup.patch", "P8-terminal-scheme-ebadf.patch", "P9-virtio-handoff-mmio-map.patch"]
 
 [build]
 template = "cargo"