clk: renesas: r8a7791/r8a7793: Add new CPG/MSSR driver

Add a new R-Car M2-W/N Clock Pulse Generator / Module Standby and
Software Reset driver, using the CPG/MSSR driver core.  This will enable
support for module resets, which are not supported by the existing
driver.

The old driver can still be used through a Kconfig option, to preserve
backward compatibility with old DTBs.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
index f0c622aa..7f70a2a 100644
--- a/drivers/clk/renesas/Makefile
+++ b/drivers/clk/renesas/Makefile
@@ -8,6 +8,7 @@
 obj-$(CONFIG_CLK_R8A7778)		+= clk-r8a7778.o
 obj-$(CONFIG_CLK_R8A7779)		+= clk-r8a7779.o
 obj-$(CONFIG_CLK_R8A7790)		+= r8a7790-cpg-mssr.o
+obj-$(CONFIG_CLK_R8A7791)		+= r8a7791-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A7795)		+= r8a7795-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A7796)		+= r8a7796-cpg-mssr.o
 obj-$(CONFIG_CLK_SH73A0)		+= clk-sh73a0.o