COMPMID-417 Fix bare metal build for armv7a

Change-Id: I566a41061b75c3a1dad5374fcdc84372e6cfbe89
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/89670
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/src/runtime/NEON/functions/NEIntegralImage.cpp b/src/runtime/NEON/functions/NEIntegralImage.cpp
index 2e94ed5..fa8aaeb 100644
--- a/src/runtime/NEON/functions/NEIntegralImage.cpp
+++ b/src/runtime/NEON/functions/NEIntegralImage.cpp
@@ -36,5 +36,5 @@
     auto k = arm_compute::support::cpp14::make_unique<NEIntegralImageKernel>();
     k->configure(input, output);
     _kernel = std::move(k);
-    _border_handler.configure(output, _kernel->border_size(), BorderMode::CONSTANT, 0);
+    _border_handler.configure(output, _kernel->border_size(), BorderMode::CONSTANT, static_cast<float>(0.f));
 }