Precompiler instructions #ifdef RTE_LIBRTE_I40E_PMD ... #endif
were not placed correctly, which caused number of
compilation errors if I40E PMD is disabled.
Fixes: 5a4806d304 ("app/testpmd: support updating pctype mapping")
Signed-off-by: Kirill Rybalchenko <kirill.rybalchenko@intel.com>