Add console-setup-pc-ekmap for arm64 and armhf cdrom

This is needed for keyboard layout selection to be effective.

Closes: #1089010

build/pkg-lists/cdrom/arm64.cfg

+console-setup-pc-ekmap
 fat-modules-${kernel:Version}
 isofs-modules-${kernel:Version}
 cdrom-core-modules-${kernel:Version}

build/pkg-lists/cdrom/armhf.cfg

+console-setup-pc-ekmap
 fat-modules-${kernel:Version}
 isofs-modules-${kernel:Version}
 cdrom-core-modules-${kernel:Version}