arm: rmobile: Merge functions to get the CPU information of R8A7790 and R8A7791

Functions to get the CPU information of R8A7790 and R8A7791 are common.
This merges these as cpu_info-rcar.c.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/arm/cpu/armv7/rmobile/Makefile b/arch/arm/cpu/armv7/rmobile/Makefile
index 2221999..fad004c 100644
--- a/arch/arm/cpu/armv7/rmobile/Makefile
+++ b/arch/arm/cpu/armv7/rmobile/Makefile
@@ -11,7 +11,7 @@
 obj-$(CONFIG_DISPLAY_BOARDINFO) += board.o
 obj-$(CONFIG_GLOBAL_TIMER) += timer.o
 obj-$(CONFIG_R8A7740) += lowlevel_init.o cpu_info-r8a7740.o pfc-r8a7740.o
-obj-$(CONFIG_R8A7790) += lowlevel_init_ca15.o cpu_info-r8a7790.o pfc-r8a7790.o
-obj-$(CONFIG_R8A7791) += lowlevel_init_ca15.o cpu_info-r8a7791.o pfc-r8a7791.o
+obj-$(CONFIG_R8A7790) += lowlevel_init_ca15.o cpu_info-rcar.o pfc-r8a7790.o
+obj-$(CONFIG_R8A7791) += lowlevel_init_ca15.o cpu_info-rcar.o pfc-r8a7791.o
 obj-$(CONFIG_SH73A0) += lowlevel_init.o cpu_info-sh73a0.o pfc-sh73a0.o
 obj-$(CONFIG_TMU_TIMER) += ../../../../sh/lib/time.o