`dpnp.ndarray` ctor returns a view at wrong addr with `buffer=` has non-zero offset

[abagusetty]

Reproducer:

import numpy
import dpnp

for xp, name in [(numpy, "numpy"), (dpnp, "dpnp")]:
    pool = xp.arange(8, dtype=xp.complex64)  # itemsize 8
    tail = pool[4:]  # element offset 4 (complex64 units) = byte offset 32

    view = xp.ndarray((4,), dtype=xp.uint16, buffer=tail)  # itemsize 2

    expect_byte_offset = 32
    got_byte_offset = view.__array_interface__["data"][0] - pool.__array_interface__["data"][0] \
        if xp is numpy else view.data.ptr - pool.data.ptr

    print(f"{name}: byte_offset={got_byte_offset} (expected {expect_byte_offset})")
    assert got_byte_offset == expect_byte_offset, f"{name} FAILED"

print("OK: dpnp matches numpy")

output:

numpy: byte_offset=32 (expected 32)
dpnp: byte_offset=8 (expected 32)
Traceback (most recent call last):
  File "/home/abagusetty/gpu4pyscf-testing/dpnp_sparse/repro_offset_bug.py", line 19, in <module>
    assert got_byte_offset == expect_byte_offset, f"{name} FAILED"
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: dpnp FAILED