dt-bindings: PCI: microchip,pcie-host: Fix DMA coherency property

JIRA: https://issues.redhat.com/browse/RHEL-107597
Upstream Status: db82660

commit db82660
Author: Conor Dooley <conor.dooley@microchip.com>
Date:   Fri May 16 10:59:39 2025 +0100

    dt-bindings: PCI: microchip,pcie-host: Fix DMA coherency property

    PolarFire SoC may be configured in a way that requires non-coherent DMA
    handling. On RISC-V, buses are coherent by default & the dma-noncoherent
    property is required to denote buses or devices that are non-coherent.
    For some reason, instead of adding dma-noncoherent to the binding
    the pointless, NOP, property dma-coherent was. Swap dma-coherent for
    dma-noncoherent.

    Fixes: 04aa999 ("dt-bindings: PCI: microchip,pcie-host: Allow dma-noncoherent")
    Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
    Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
    Link: https://lore.kernel.org/r/20250516-datebook-senator-ff7a1c30cbd5@spud

Signed-off-by: Myron Stowe <mstowe@redhat.com>

Author: Myron Stowe

Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml

@@ -50,7 +50,7 @@ properties:
     items:
       pattern: '^fic[0-3]$'
 
-  dma-coherent: true
+  dma-noncoherent: true
 
   ranges:
     minItems: 1