x86: Remove coreboot_ from file name

... because that information is already "encoded" in the directory name.

Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/coreboot/Makefile b/arch/x86/cpu/coreboot/Makefile
index 4612a3e..b1d3e95 100644
--- a/arch/x86/cpu/coreboot/Makefile
+++ b/arch/x86/cpu/coreboot/Makefile
@@ -33,6 +33,7 @@
 
 LIB	:= $(obj)lib$(SOC).o
 
+SOBJS-$(CONFIG_SYS_COREBOOT) += car.o
 COBJS-$(CONFIG_SYS_COREBOOT) += coreboot.o
 COBJS-$(CONFIG_SYS_COREBOOT) += tables.o
 COBJS-$(CONFIG_SYS_COREBOOT) += ipchecksum.o
@@ -40,8 +41,6 @@
 COBJS-$(CONFIG_SYS_COREBOOT) += timestamp.o
 COBJS-$(CONFIG_PCI) += pci.o
 
-SOBJS-$(CONFIG_SYS_COREBOOT) += coreboot_car.o
-
 SRCS	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
 
diff --git a/arch/x86/cpu/coreboot/coreboot_car.S b/arch/x86/cpu/coreboot/car.S
similarity index 100%
rename from arch/x86/cpu/coreboot/coreboot_car.S
rename to arch/x86/cpu/coreboot/car.S