doc/Makefile: include mk/spdk.common.mk

This allows us to use the $(Q) variable in this Makefile.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I1f9c54fb8c995bdee9749683b409152472366cbc

Reviewed-on: https://review.gerrithub.io/415872
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>

doc/Makefile

@@ -1,3 +1,6 @@
+SPDK_ROOT_DIR := $(abspath $(CURDIR)/..)
+include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
+
 all: doc
 	@:
 
@@ -6,15 +9,15 @@ all: doc
 doc: output
 
 changelog.md: ../CHANGELOG.md
-	sed -e 's/^# Changelog/# Changelog {#changelog}/' \
+	$(Q)sed -e 's/^# Changelog/# Changelog {#changelog}/' \
 	    -e 's/^##/#/' \
 	    -e 's/^# \(\(v..\...\):.*\)/# \1 {#changelog-\2}/' \
 	    -e '/# v..\...:/s/\./-/2' \
 	    < $< > $@
 
 output: Doxyfile changelog.md $(wildcard *.md) $(wildcard ../include/spdk/*.h)
-	rm -rf $@
-	doxygen Doxyfile
+	$(Q)rm -rf $@
+	$(Q)doxygen Doxyfile
 
 clean:
-	rm -rf output changelog.md
+	$(Q)rm -rf output changelog.md