Add complex float to setitem (#760)

* Add complex<float> to dparray::set_item() because FFT

Author: shssf

dpnp/dparray.pyx

@@ -430,6 +430,8 @@ cdef class dparray:
             ( < int * > self._dparray_data)[lin_idx] = <int > value
         elif self.dtype == numpy.bool:
             ( < cpp_bool * > self._dparray_data)[lin_idx] = < cpp_bool > value
+        elif self.dtype == numpy.complex64:
+            ( < float complex * > self._dparray_data)[lin_idx] = <float complex > value
         elif self.dtype == numpy.complex128:
             ( < double complex * > self._dparray_data)[lin_idx] = <double complex > value
         else: