ARM: renesas: Rename rmobile_get_cpu_type() to renesas_get_cpu_type()

Rename rmobile_get_cpu_type() to renesas_get_cpu_type() because
all the chips are made by Renesas, while only a subset of them
is from the R-Mobile line.

Use the following command to perform the rename:

"
$ git grep -l '\<rmobile_get_cpu_type\>' | \
  xargs -I {} sed -i 's@\<rmobile_get_cpu_type\>@renesas_get_cpu_type@g' {}
"

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Paul Barker <paul.barker.ct@bp.renesas.com>
diff --git a/drivers/spi/renesas_rpc_spi.c b/drivers/spi/renesas_rpc_spi.c
index 3eb1406..8a93d1b 100644
--- a/drivers/spi/renesas_rpc_spi.c
+++ b/drivers/spi/renesas_rpc_spi.c
@@ -203,7 +203,7 @@
 static u32 rpc_spi_get_strobe_delay(void)
 {
 #ifndef CONFIG_RZA1
-	u32 cpu_type = rmobile_get_cpu_type();
+	u32 cpu_type = renesas_get_cpu_type();
 
 	/*
 	 * NOTE: RPC_PHYCNT_STRTIM value: