ipa: mali-c55: Add Lens Shading Correction algorithm

Add a lens shading correction algorithm to the mali-c55 IPA. This
algorithm parses tables from Yaml in a easy to follow format before
munging them into Arm's interleaved mesh to be copied to the ISP.
A colour temperature estimate from the AGC statistics is used to
select the appropriate table to apply; this can be some interpolation
of two tables, in which case the colour temperature estimate is also
used to derive the coefficient that does the blending.

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Nayden Kanchev <nayden.kanchev@arm.com>
Co-developed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>

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