drivers: soc: atmel: fix type for same7

A missing comma caused a build failure:

drivers/soc/atmel/soc.c:196:24: error: too few arguments provided to function-like macro invocation

Fixes: af3a1051 ("drivers: soc: atmel: add per soc id and version match masks")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>