apq8084: disable logs in user builds

Added checks on target build variant to suppress
LK logs in user variant builds.

CRs-Fixed: 697570
Change-Id: I2143945b28e67c2c181b64a000f7d972bcc8b32c
diff --git a/project/apq8084.mk b/project/apq8084.mk
index 250d120..fb61eea 100644
--- a/project/apq8084.mk
+++ b/project/apq8084.mk
@@ -6,7 +6,12 @@
 
 MODULES += app/aboot
 
+ifeq ($(TARGET_BUILD_VARIANT),user)
+DEBUG := 0
+else
 DEBUG := 1
+endif
+
 EMMC_BOOT := 1
 ENABLE_SDHCI_SUPPORT := 1
 ENABLE_UFS_SUPPORT   := 1