vpp-api-test and sample-plugin should depend on dpdk conditionally

Change-Id: Ie26340141fdbd3256e305ab37f4baa817081bf46
Signed-off-by: Damjan Marion <damarion@cisco.com>
diff --git a/build-data/packages/sample-plugin.mk b/build-data/packages/sample-plugin.mk
index e9f2789..58d4632 100644
--- a/build-data/packages/sample-plugin.mk
+++ b/build-data/packages/sample-plugin.mk
@@ -1,6 +1,5 @@
 sample-plugin_configure_depend =		\
 	vppinfra-install			\
-	dpdk-install				\
 	svm-install				\
 	vlib-api-install			\
 	vlib-install				\
@@ -8,12 +7,8 @@
 	vpp-install				\
 	vpp-api-test-install
 
-# 
-sample-plugin_configure_args = --with-dpdk
-
 sample-plugin_CPPFLAGS = $(call installed_includes_fn,	\
 	vppinfra					\
-	dpdk						\
 	openssl						\
 	svm						\
 	vlib						\
@@ -24,7 +19,6 @@
 
 sample-plugin_LDFLAGS = $(call installed_libs_fn,	\
 	vppinfra					\
-	dpdk						\
 	openssl						\
 	svm						\
 	vlib						\
@@ -39,3 +33,10 @@
 	  $(PACKAGE_INSTALL_DIR)/$(arch_lib_dir)/vlib_plugins
 
 sample-plugin_image_include = echo $(arch_lib_dir)/vlib_plugins
+
+ifneq ($($(PLATFORM)_uses_dpdk),no)
+sample-plugin_configure_args = --with-dpdk
+sample-plugin_configure_depend += dpdk-install
+sample-plugin_CPPFLAGS += $(call installed_includes_fn, dpdk)
+sample-plugin_LDFLAGS += $(call installed_libs_fn, dpdk)
+endif