msm8064: disable logs in user builds

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

CRs-Fixed: 697570
Change-Id: I2ea877ae7625bd277db9f411cd6b2190b04e5339
diff --git a/project/msm8960.mk b/project/msm8960.mk
index 0de2066..de6e80c 100644
--- a/project/msm8960.mk
+++ b/project/msm8960.mk
@@ -6,7 +6,11 @@
 
 MODULES += app/aboot
 
+ifeq ($(TARGET_BUILD_VARIANT),user)
+DEBUG := 0
+else
 DEBUG := 1
+endif
 
 #DEFINES += WITH_DEBUG_DCC=1
 DEFINES += WITH_DEBUG_UART=1