[PATCH v2] xen/arm: Standardize R-Car platform Kconfig descriptions

[Jahan Murudi <jahan.murudi.zg@xxxxxxxxxxx>]

Change "RCar3/RCar4" to "R-Car Gen3/Gen4" to match official Renesas branding.
Aligns with documentation and industry-standard terminology.

Signed-off-by: Jahan Murudi <jahan.murudi.zg@xxxxxxxxxxx>
---
 xen/arch/arm/platforms/Kconfig | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/xen/arch/arm/platforms/Kconfig b/xen/arch/arm/platforms/Kconfig
index 87bf614788..c8bc0bfae3 100644
--- a/xen/arch/arm/platforms/Kconfig
+++ b/xen/arch/arm/platforms/Kconfig
@@ -22,21 +22,23 @@ config QEMU
          machine.
 
 config RCAR3
-       bool "Renesas RCar3 support"
+       bool "Renesas R-Car Gen3 support"
        depends on ARM_64
        select HAS_SCIF
        select IPMMU_VMSA
        help
-         Enable all the required drivers for Renesas RCar3
+         Enable support for Renesas R-Car Generation 3 SoCs (H3, M3, etc.).
+         Includes all required drivers and platform-specific features.
 
 config RCAR4
-       bool "Renesas RCar4 support"
+       bool "Renesas R-Car Gen4 support"
        depends on ARM_64
        select HAS_SCIF
        select HAS_ITS
        select IPMMU_VMSA
        help
-       Enable all the required drivers for Renesas RCar4
+         Enable support for Renesas R-Car Generation 4 SoCs (V4H, V4M, etc.).
+         Includes all required drivers and platform-specific features.
 
 config MPSOC
        bool "Xilinx Ultrascale+ MPSoC support"
-- 
2.34.1