code/pred,compiler/arm/{arith,parms}: Fix EQL by defining as a static-fun.

  * EQL on floats has been working for a while, but the full
expansion was still disabled.  Re-enable.

  * EQL on RATIO and COMPLEX is defined in terms of EQL on the two
sub-parts (numerator and denominator or realpart and imagpart),
and that requires recursive EQL.  This is traditionally finessed
by either a GENERIC-EQL assembly-routine or a static-fun.  We'll
go with the static-fun because we have neither GENERIC-xxx
assembly-routines nor the machinery defined to implement them.
code/target-random: Re-enable float bits on ARM.

  * Not much to say, really.