Implement spl_load_image_sqfs() in spl code.
This will be used in MMC to read a file from a squashfs partition.
Also, loosen squashfs read checks on file size by not failing when a
bigger size than the actual file size is requested. (Just read the file)
This is needed for FIT loading, because the length is ALIGNed.
Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: João Marcos Costa <joaomarcos.costa@bootlin.com>
6494e823b4