configs/raspberrypi5: use correct CPU
The Raspberry Pi 5 uses a quad-core ARM Cortex-A76 CPU cluster[1].
This fixes incorrect CPU as it is no big.LITTLE CPU.
[1]: https://www.raspberrypi.com/documentation/computers/processors.html#bcm2712
Signed-off-by: Athaariq Ardhiansyah <foss@athaariq.my.id>
Signed-off-by: Gaël PORTAY <gael.portay@rtone.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>