Fix minor typos in src/fpu/postproc

src/fpu/postproc/postprocess.sv

@@ -53,7 +53,7 @@ module postprocess import cvw::*;  #(parameter cvw_t P) (
   input logic  [P.DIVb:0]                  DivUm,               // divsqrt significand
   // conversion signals
   input logic                              CvtCs,               // the result's sign
-  input logic  [P.NE:0]                    CvtCe,               // the calculated expoent
+  input logic  [P.NE:0]                    CvtCe,               // the calculated exponent
   input logic                              CvtResSubnormUf,     // the convert result is subnormal or underflows
   input logic  [P.LOGCVTLEN-1:0]           CvtShiftAmt,         // how much to shift by
   input logic                              ToInt,               // is fp->int (since it's writting to the integer register)