|WARNING| pw159722 [PATCH v2] buildtools: add symbol check to Windows

[checkpatch at dpdk.org]

Test-Label: checkpatch
Test-Status: WARNING
http://dpdk.org/patch/159722

_coding style issues_


__rte_experimental must appear alone on the line immediately preceding the return type of a function.
__rte_experimental must appear alone on the line immediately preceding the return type of a function.
__rte_internal must appear alone on the line immediately preceding the return type of a function.
__rte_internal must appear alone on the line immediately preceding the return type of a function.