SPL: Allow ARM926EJS to avoid compiling in the CPU support code

This allows the SPL to avoid compiling in the CPU support code.
Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
Cc: Scott Wood <scottwood@freescale.com>

arch/arm/cpu/arm926ejs/Makefile

@@ -28,6 +28,12 @@ LIB	= $(obj)lib$(CPU).o
 START	= start.o
 COBJS	= cpu.o
 
+ifdef	CONFIG_SPL_BUILD
+ifdef	CONFIG_SPL_NO_CPU_SUPPORT_CODE
+START	:=
+endif
+endif
+
 SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS) $(SOBJS))
 START	:= $(addprefix $(obj),$(START))