fbdev: tridentfb: Fix missing pci_disable_device() in probe and remove

Replace pci_enable_device() with pcim_enable_device(), pci_disable_device() and
pci_release_regions() will be called in release automatically.

Signed-off-by: ruanjinjie <ruanjinjie@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>