clk: 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/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
index a093027..12966d0 100644
--- a/drivers/clk/renesas/Kconfig
+++ b/drivers/clk/renesas/Kconfig
@@ -5,20 +5,20 @@
 	  Enable support for clock present on Renesas SoCs.
 
 config CLK_RCAR
-	bool "Renesas RCar clock driver support"
+	bool "Renesas R-Car clock driver support"
 	help
-	  Enable common code for clocks on Renesas RCar SoCs.
+	  Enable common code for clocks on Renesas R-Car SoCs.
 
 config CLK_RCAR_CPG_LIB
 	bool "CPG/MSSR library functions"
 
 config CLK_RCAR_GEN2
-	bool "Renesas RCar Gen2 clock driver"
+	bool "Renesas R-Car Gen2 clock driver"
 	def_bool y if RCAR_32
 	depends on CLK_RENESAS
 	select CLK_RCAR
 	help
-	  Enable this to support the clocks on Renesas RCar Gen2 SoC.
+	  Enable this to support the clocks on Renesas R-Car Gen2 SoC.
 
 config CLK_R8A7790
 	bool "Renesas R8A7790 clock driver"
@@ -51,14 +51,14 @@
 	  Enable this to support the clocks on Renesas R8A7794 SoC.
 
 config CLK_RCAR_GEN3
-	bool "Renesas RCar Gen3 and Gen4 clock driver"
+	bool "Renesas R-Car Gen3 and Gen4 clock driver"
 	def_bool y if RCAR_64
 	depends on CLK_RENESAS
 	select CLK_RCAR
 	select CLK_RCAR_CPG_LIB
 	select DM_RESET
 	help
-	  Enable this to support the clocks on Renesas RCar Gen3 and Gen4 SoCs.
+	  Enable this to support the clocks on Renesas R-Car Gen3 and Gen4 SoCs.
 
 config CLK_R8A774A1
         bool "Renesas R8A774A1 clock driver"
diff --git a/drivers/clk/renesas/clk-rcar-gen2.c b/drivers/clk/renesas/clk-rcar-gen2.c
index 89f2d96..9b6fce4 100644
--- a/drivers/clk/renesas/clk-rcar-gen2.c
+++ b/drivers/clk/renesas/clk-rcar-gen2.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Renesas RCar Gen2 CPG MSSR driver
+ * Renesas R-Car Gen2 CPG MSSR driver
  *
  * Copyright (C) 2017 Marek Vasut <marek.vasut@gmail.com>
  *
diff --git a/drivers/clk/renesas/clk-rcar-gen3.c b/drivers/clk/renesas/clk-rcar-gen3.c
index aa38c0f..375cc4a 100644
--- a/drivers/clk/renesas/clk-rcar-gen3.c
+++ b/drivers/clk/renesas/clk-rcar-gen3.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Renesas RCar Gen3 CPG MSSR driver
+ * Renesas R-Car Gen3 CPG MSSR driver
  *
  * Copyright (C) 2017 Marek Vasut <marek.vasut@gmail.com>
  *
diff --git a/drivers/clk/renesas/rcar-cpg-lib.c b/drivers/clk/renesas/rcar-cpg-lib.c
index 8862fbc..ea33bfd 100644
--- a/drivers/clk/renesas/rcar-cpg-lib.c
+++ b/drivers/clk/renesas/rcar-cpg-lib.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Renesas RCar Gen3 CPG MSSR driver
+ * Renesas R-Car Gen3 CPG MSSR driver
  *
  * Copyright (C) 2017 Marek Vasut <marek.vasut@gmail.com>
  *
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c
index 35bad7f..39ff454 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.c
+++ b/drivers/clk/renesas/renesas-cpg-mssr.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Renesas RCar Gen3 CPG MSSR driver
+ * Renesas R-Car Gen3 CPG MSSR driver
  *
  * Copyright (C) 2018 Marek Vasut <marek.vasut@gmail.com>
  *
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.h b/drivers/clk/renesas/renesas-cpg-mssr.h
index 71e409f..d5db14b 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.h
+++ b/drivers/clk/renesas/renesas-cpg-mssr.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- * Renesas RCar Gen3 CPG MSSR driver
+ * Renesas R-Car Gen3 CPG MSSR driver
  *
  * Copyright (C) 2017-2018 Marek Vasut <marek.vasut@gmail.com>
  *