ARM: renesas: Rename ARCH_RMOBILE to ARCH_RENESAS

Rename ARCH_RMOBILE to ARCH_RENESAS 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 'ARCH_RMOBILE' | xargs -I {} sed -i 's@ARCH_RMOBILE@ARCH_RENESAS@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/ram/Makefile b/drivers/ram/Makefile
index 985990a..c9c46cc 100644
--- a/drivers/ram/Makefile
+++ b/drivers/ram/Makefile
@@ -28,5 +28,5 @@
 
 obj-$(CONFIG_ARCH_OCTEON) += octeon/
 
-obj-$(CONFIG_ARCH_RMOBILE) += renesas/
+obj-$(CONFIG_ARCH_RENESAS) += renesas/
 obj-$(CONFIG_CADENCE_DDR_CTRL) += cadence/