plat: marvell: armada: a3k: Use make ifeq/endif syntax for $(MARVELL_SECURE_BOOT) code

Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: Id766db4a900a56c795fe5ffdd8a2b80b1aaa2132
diff --git a/plat/marvell/armada/a3k/common/a3700_common.mk b/plat/marvell/armada/a3k/common/a3700_common.mk
index fccd486..437f5d0 100644
--- a/plat/marvell/armada/a3k/common/a3700_common.mk
+++ b/plat/marvell/armada/a3k/common/a3700_common.mk
@@ -170,11 +170,15 @@
 endif
 	$(DOIMAGETOOL) $(DOIMAGE_FLAGS)
 	@if [ -e "$(TIMNCFG)" ]; then $(DOIMAGETOOL) -r $(TIMNCFG); fi
-	@if [ "$(MARVELL_SECURE_BOOT)" = "1" ]; then sed -i 's|$(WTMI_MULTI_IMG)|$(WTMI_ENC_IMG)|1;s|$(BOOT_IMAGE)|$(BOOT_ENC_IMAGE)|1;' $(TIMNCFG); fi
+ifeq ($(MARVELL_SECURE_BOOT),1)
+	@sed -i 's|$(WTMI_MULTI_IMG)|$(WTMI_ENC_IMG)|1;s|$(BOOT_IMAGE)|$(BOOT_ENC_IMAGE)|1;' $(TIMNCFG)
+endif
 	$(TIM2IMG) $(TIM2IMGARGS) -o $(BUILD_PLAT)/$(FLASH_IMAGE)
 	@mv -t $(BUILD_PLAT) $(TIM_IMAGE) $(DOIMAGE_CFG) $(TIMN_IMAGE) $(TIMNCFG)
 	@cp -t $(BUILD_PLAT) $(WTMI_IMG) $(WTMI_SYSINIT_IMG) $(WTMI_MULTI_IMG)
-	@if [ "$(MARVELL_SECURE_BOOT)" = "1" ]; then mv -t $(BUILD_PLAT) OtpHash.txt; fi
+ifeq ($(MARVELL_SECURE_BOOT),1)
+	@mv -t $(BUILD_PLAT) OtpHash.txt
+endif
 	@find . -name "*.txt" | grep -E "CSK[[:alnum:]]_KeyHash.txt|Tim_msg.txt|TIMHash.txt" | xargs rm -f
 
 else # ${WTP}