kasan: bazel add kasan support [1/2]

PD#SWPL-128976

Problem:
bazel add kasan support

Solution:
add --kasan support

Verify:
local

Change-Id: I493e17ba66fd79a36b53c57bdcee7a7c52711f67
Signed-off-by: qinglin.li <qinglin.li@amlogic.com>
diff --git a/amlogic_utils.sh b/amlogic_utils.sh
index c792310..17ebfcb 100644
--- a/amlogic_utils.sh
+++ b/amlogic_utils.sh
@@ -1260,12 +1260,12 @@
 function export_env_variable () {
 	export ABI BUILD_CONFIG LTO KMI_SYMBOL_LIST_STRICT_MODE CHECK_DEFCONFIG MANUAL_INSMOD_MODULE ARCH
 	export KERNEL_DIR COMMON_DRIVERS_DIR BUILD_DIR ANDROID_PROJECT GKI_CONFIG UPGRADE_PROJECT ANDROID_VERSION FAST_BUILD CHECK_GKI_20 DEV_CONFIGS
-	export FULL_KERNEL_VERSION BAZEL PREBUILT_GKI
+	export FULL_KERNEL_VERSION BAZEL PREBUILT_GKI KASAN
 
 	echo ROOT_DIR=$ROOT_DIR
 	echo ABI=${ABI} BUILD_CONFIG=${BUILD_CONFIG} LTO=${LTO} KMI_SYMBOL_LIST_STRICT_MODE=${KMI_SYMBOL_LIST_STRICT_MODE} CHECK_DEFCONFIG=${CHECK_DEFCONFIG} MANUAL_INSMOD_MODULE=${MANUAL_INSMOD_MODULE}
 	echo KERNEL_DIR=${KERNEL_DIR} COMMON_DRIVERS_DIR=${COMMON_DRIVERS_DIR} BUILD_DIR=${BUILD_DIR} ANDROID_PROJECT=${ANDROID_PROJECT} GKI_CONFIG=${GKI_CONFIG} UPGRADE_PROJECT=${UPGRADE_PROJECT} ANDROID_VERSION=${ANDROID_VERSION}  FAST_BUILD=${FAST_BUILD} CHECK_GKI_20=${CHECK_GKI_20}
-	echo FULL_KERNEL_VERSION=${FULL_KERNEL_VERSION} BAZEL=${BAZEL} PREBUILT_GKI=${PREBUILT_GKI}
+	echo FULL_KERNEL_VERSION=${FULL_KERNEL_VERSION} BAZEL=${BAZEL} PREBUILT_GKI=${PREBUILT_GKI} KASAN=${KASAN}
 	echo MENUCONFIG=${MENUCONFIG} BASICCONFIG=${BASICCONFIG} IMAGE=${IMAGE} MODULES=${MODULES} DTB_BUILD=${DTB_BUILD}
 }
 export -f export_env_variable
@@ -1383,6 +1383,11 @@
 			VA=1
 			shift
 			;;
+		--kasan)
+			KASAN=1
+			LTO=none
+			shift
+			;;
 		-h|--help)
 			show_help
 			exit 0