Merge branch 'kbuild/rc-fixes' into kbuild/kconfig

There is one kconfig fix in the rc-fixes branch that I forgot to submit
for 3.8, so let's add it to the kconfig branch for 3.9-rc1.

Documentation/kbuild/makefiles.txt

@@ -1175,15 +1175,16 @@ When kbuild executes, the following steps are followed (roughly):
 	in an init section in the image. Platform code *must* copy the
 	blob to non-init memory prior to calling unflatten_device_tree().
 
+	To use this command, simply add *.dtb into obj-y or targets, or make
+	some other target depend on %.dtb
+
+	A central rule exists to create $(obj)/%.dtb from $(src)/%.dts;
+	architecture Makefiles do no need to explicitly write out that rule.
+
 	Example:
-		#arch/x86/platform/ce4100/Makefile
-		clean-files := *dtb.S
-
-		DTC_FLAGS := -p 1024
-		obj-y += foo.dtb.o
-
-		$(obj)/%.dtb: $(src)/%.dts
-			$(call cmd,dtc)
+		targets += $(dtb-y)
+		clean-files += *.dtb
+		DTC_FLAGS ?= -p 1024
 
 --- 6.8 Custom kbuild commands
 

Documentation/kbuild/modules.txt

@@ -470,7 +470,7 @@ build.
 
 	Sometimes, an external module uses exported symbols from
 	another external module. kbuild needs to have full knowledge of
-	all symbols to avoid spitting out warnings about undefined
+	all symbols to avoid spliitting out warnings about undefined
 	symbols. Three solutions exist for this situation.
 
 	NOTE: The method with a top-level kbuild file is recommended