media: ipu7: set CSI2 port count by hardware version

[khaiwenng]

IPU7 provides four CSI2 ports, while IPU7P5 and IPU8 provide three. The common platform data initialization currently uses the four-entry offset table for every hardware version, causing an invalid fourth CSI2 entity to be registered on IPU7P5 and IPU8.

Pass the PCI-selected hardware version to the platform data initializer and set the number of ports accordingly.

[khaiwenng]

Before
media-ctl -p | grep -ie entity | grep -ie CSI

- entity 129: Intel IPU7 CSI2 0 (9 pads, 9 links, 4 routes)
- entity 139: Intel IPU7 CSI2 1 (9 pads, 8 links, 1 route)
- entity 149: Intel IPU7 CSI2 2 (9 pads, 8 links, 1 route)
- entity 159: Intel IPU7 CSI2 3 (9 pads, 8 links, 1 route)

After
media-ctl -p | grep -ie entity | grep -ie CSI

- entity 97: Intel IPU7 CSI2 0 (9 pads, 9 links, 1 route)
- entity 107: Intel IPU7 CSI2 1 (9 pads, 8 links, 1 route)
- entity 117: Intel IPU7 CSI2 2 (9 pads, 8 links, 1 route)