[Title] Change build xml file name

[Type]		Feature
[Module]	Main
[Priority]	Minor
[CQ#]
[Redmine#]
[Problem]
[Cause]
[Solution]

diff --git a/builder/build.properties.clean b/builder/build.properties.product.clean
similarity index 100%
rename from builder/build.properties.clean
rename to builder/build.properties.product.clean

diff --git a/builder/customTargets.xml b/builder/customTargets.product.xml
similarity index 100%
rename from builder/customTargets.xml
rename to builder/customTargets.product.xml