redhat/configs: Remove `CONFIG_HZ_1000 is not set` for aarch64

Historically, the value of CONFIG_HZ has been set to 100 on aarch64 platforms. However, this is not a good value to use for interactive devices. 1000 Hz is the preferred choice for systems requiring fast interactive responses to events. Apparently, there is no reason why this is not set for aarch64 like it is for x86_64, so, unless someone have a reason to maintain the 100 value by default for Fedora kernels, remove the CONFIG_HZ_1000 is not set option for aarch64 and use the common option.

Signed-off-by: Enric Balletbo i Serra eballetbo@redhat.com