PCI: Don't include 'pm_wakeup.h' directly

The header clearly states that it does not want to be included directly,
only via 'device.h'. The 'platform_device.h' works equally well.

Thus, remove the direct inclusion.

Link: https://lore.kernel.org/r/20241118072917.3853-12-wsa+renesas@sang-engineering.com


Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>