MAINTAINERS: repair Microchip corei2c driver entry

The driver was renamed before application but the relevant change did
not propagate to the MAINTAINERS patch that was applied. Repair it.

CC: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20221109212219.1598355-5-conor@kernel.org


Signed-off-by: Arnd Bergmann <arnd@arndb.de>