net: phy: broadcom: don't include '<linux/pm_wakeup.h>' directly

The header clearly states that it does not want to be included directly,
only via '<linux/(platform_)?device.h>'. Replace the include accordingly.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250210113658.52019-2-wsa+renesas@sang-engineering.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>