pci: renesas: Fix R-Car spelling

The correct spelling is R-Car, including the dash, update the usage.
Kconfig strings and comment changes only, no functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 876a5fa..4190143 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -189,19 +189,19 @@
 	depends on TARGET_MALTA
 
 config PCI_RCAR_GEN2
-	bool "Renesas RCar Gen2 PCIe driver"
+	bool "Renesas R-Car Gen2 PCIe driver"
 	depends on RCAR_32
 	help
 	  Say Y here if you want to enable PCIe controller support on
-	  Renesas RCar Gen2 SoCs. The PCIe controller on RCar Gen2 is
+	  Renesas R-Car Gen2 SoCs. The PCIe controller on R-Car Gen2 is
 	  also used to access EHCI USB controller on the SoC.
 
 config PCI_RCAR_GEN3
-	bool "Renesas RCar Gen3 PCIe driver"
+	bool "Renesas R-Car Gen3 PCIe driver"
 	depends on RCAR_GEN3
 	help
 	  Say Y here if you want to enable PCIe controller support on
-	  Renesas RCar Gen3 SoCs.
+	  Renesas R-Car Gen3 SoCs.
 
 config PCI_SANDBOX
 	bool "Sandbox PCI support"