fix uninitialized value in hipcc

Change-Id: I90b070c491f0efc328fcf97de0e111658ec772de

bin/hipcc

@@ -824,11 +824,11 @@ if ($HIP_PLATFORM eq "hcc" and $HIP_COMPILER eq "clang") {
             $HIPLDFLAGS .= " -mllvm -amdgpu-early-inline-all=true -mllvm -amdgpu-function-calls=false";
         }
     }
-    if ($DEVICE_LIB_PATH ne "$ROCM_PATH/amdgcn/bitcode") {
-        $HIP_DEVLIB_FLAGS = " --hip-device-lib-path=$DEVICE_LIB_PATH";
-    }
+
     if ($hasHIP) {
-        $HIPCXXFLAGS .= " $HIP_DEVLIB_FLAGS";
+        if ($DEVICE_LIB_PATH ne "$ROCM_PATH/amdgcn/bitcode") {
+            $HIPCXXFLAGS .= " --hip-device-lib-path=$DEVICE_LIB_PATH";
+        }
         if ($HIP_RUNTIME ne "HCC") {
             $HIPCXXFLAGS .= " -fhip-new-launch-api";
         }