RTEMS_DECONST - Should it be removed? - TMS570

[Martin Galvan]

One more thing: you may notice we have two forms of the prescaler
formula. The one that's commented out is the (incorrect) one that
HALCogen generates; using that one gives us a prescaler of 48 while
using the (supposedly correct) one yields 47. The bug we're currently
facing seems to happen more often if we use 47 for the prescaler;
that's why I left it uncommented.