kbuild: use relative path to include Makefile

The "MAKEFLAGS += --include-dir=$(srctree)" line in the top Makefile
allows us to do this.

Signed-off-by: Masahiro Yamada <[e-mail]>
Signed-off-by: Michal Marek <[e-mail]>

arch/arm/boot/Makefile

···
 #
 
 ifneq ($(MACHINE),)
-include $(srctree)/$(MACHINE)/Makefile.boot
+include $(MACHINE)/Makefile.boot
 endif
 
 # Note: the following conditions must always be true:

arch/ia64/kernel/Makefile

···
 CFLAGS_traps.o  += -mfixed-range=f2-f5,f16-f31
 
 # The gate DSO image is built using a special linker script.
-include $(srctree)/arch/ia64/kernel/Makefile.gate
+include arch/ia64/kernel/Makefile.gate
 # tell compiled for native
 CPPFLAGS_gate.lds += -D__IA64_GATE_PARAVIRTUALIZED_NATIVE
 

scripts/Makefile.dtbinst

···
 
 include include/config/auto.conf
 include scripts/Kbuild.include
-include $(srctree)/$(obj)/Makefile
+include $(obj)/Makefile
 
 PHONY += __dtbs_install_prep
 __dtbs_install_prep:

scripts/Makefile.fwinst

···
 -include $(objtree)/.config
 
 include scripts/Kbuild.include
-include $(srctree)/$(obj)/Makefile
+include $(obj)/Makefile
 
 include scripts/Makefile.host