poplar: Add support for recovery build

Signed-off-by: Victor Chong <victor.chong@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
diff --git a/plat/hisilicon/poplar/platform.mk b/plat/hisilicon/poplar/platform.mk
index cdeecbd..2dbbac6 100644
--- a/plat/hisilicon/poplar/platform.mk
+++ b/plat/hisilicon/poplar/platform.mk
@@ -15,6 +15,9 @@
 endif
 $(eval $(call add_define,POPLAR_TSP_RAM_LOCATION_ID))
 
+POPLAR_RECOVERY		:= 0
+$(eval $(call add_define,POPLAR_RECOVERY))
+
 NEED_BL33			:= yes
 
 COLD_BOOT_SINGLE_CPU		:= 1