xml: Normalize white space in attributes.
xml: Normalize white space in attributes.

 * vpr doesn't strip white space in the name attribute on ports and thus
   doesn't match properly.

Signed-off-by: Tim 'mithro' Ansell <b1c1d8736f20db3fb6c1c66bb1455ed43909f0d8@mith.ro>

SymbiFlow/symbiflow-arch-defs,SymbiFlow/symbiflow-arch-defs