SUPPORT.md: Update status of Renesas IPMMU-VMSA (Arm)

Mark Renesas IPMMU-VMSA as "Supported, not security supported"
and remove dependencies on CONFIG_EXPERT.

We can't treat the IOMMU driver as "Supported" since the device
passthrough feature is not security supported on Arm today.

Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Acked-by: Julien Grall <jgrall@amazon.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>

SUPPORT.md

@@ -64,7 +64,7 @@ supported in this document.
     Status, Intel VT-d: Supported
     Status, ARM SMMUv1: Supported
     Status, ARM SMMUv2: Supported
-    Status, Renesas IPMMU-VMSA: Tech Preview
+    Status, Renesas IPMMU-VMSA: Supported, not security supported
 
 ### ARM/GICv3 ITS
 

xen/arch/arm/platforms/Kconfig

@@ -25,7 +25,7 @@ config RCAR3
 	bool "Renesas RCar3 support"
 	depends on ARM_64
 	select HAS_SCIF
-	select IPMMU_VMSA if EXPERT
+	select IPMMU_VMSA
 	---help---
 	Enable all the required drivers for Renesas RCar3
 

xen/drivers/passthrough/Kconfig

@@ -14,7 +14,7 @@ config ARM_SMMU
 	  ARM SMMU architecture.
 
 config IPMMU_VMSA
-	bool "Renesas IPMMU-VMSA found in R-Car Gen3 SoCs" if EXPERT
+	bool "Renesas IPMMU-VMSA found in R-Car Gen3 SoCs"
 	depends on ARM_64
 	---help---
 	  Support for implementations of the Renesas IPMMU-VMSA found