tfm and integer: skip whitespace at end in radix read

wolfcrypt/src/integer.c

@@ -5358,6 +5358,9 @@ int mp_read_radix (mp_int * a, const char *str, int radix)
     ++str;
   }
 
+  /* Skip whitespace at end of str */
+  while (CharIsWhiteSpace(*str))
+    ++str;
   /* if digit in isn't null term, then invalid character was found */
   if (*str != '\0') {
      mp_zero (a);

wolfcrypt/src/tfm.c

@@ -6029,7 +6029,13 @@ static int fp_read_radix(fp_int *a, const char *str, int radix)
       }
     }
     if (y >= radix) {
-      return FP_VAL;
+      /* Check if whitespace at end of line */
+      while (CharIsWhiteSpace(*str))
+        ++str;
+      if (*str)
+        return FP_VAL;
+      else
+        break;
     }
 
     /* if the char was found in the map