PCI: vmd: depend on !UML

With UML having enabled (simulated) PCI on UML, VMD breaks
allyesconfig/allmodconfig compilation because it assumes
it's running on X86_64 bare metal, and has hardcoded API
use of ARCH=x86. Make it depend on !UML to fix this.

Link: https://lore.kernel.org/r/20210811162530.affe26231bc3.I131b3c1e67e3d2ead6e98addd256c835fbef9a3e@changeid
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Reviewed-by: Jon Derrick <[email protected]>
Acked-by: Randy Dunlap <[email protected]> # build-tested

Author: jmberg-intel

drivers/pci/controller/Kconfig

@@ -254,7 +254,7 @@ config PCIE_MEDIATEK_GEN3
 	  MediaTek SoCs.
 
 config VMD
-	depends on PCI_MSI && X86_64 && SRCU
+	depends on PCI_MSI && X86_64 && SRCU && !UML
 	tristate "Intel Volume Management Device Driver"
 	help
 	  Adds support for the Intel Volume Management Device (VMD). VMD is a