ipa: rpi: vc4: data: Update tuning files for HDR

All the Raspberry Pi official camera tuning files are updated for
HDR. As stated previously, there is no mechanism in the hardware for
combining images so all this does is enable multi-channel AGC to
produce short and long exposure frames. It will be up to the
application to deal with them.

The changes are identical in every tuning file.

1. The existing AGC tuning is duplicated twice so that we have 3 AGC
channels.

2. The first is left alone (the default AGC channel), the second is
tweaked to under-expose significantly (ev -3) and the final one is
tweaked to over-exposure slightly (ev +0.5)

3. Control parameters are provided to the "rpi.hdr" algorithm to
associate these AGC channels correctly with the HDR modes.

Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

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