core-bpf: enable sol-get-sysvar syscall

[buffalojoec]

Problem

The BPF version of Address Lookup Table depends on SolGetSysvar to read slot hash data. It should be activated if testing against the BPF version of Address Lookup Table.

Summary of Changes

If the core-bpf feature is active, and the program is the Address Lookup Table program, activate the feature.

[mjain-jump]

ideally these features should just be passed in through the fuzzing input. the harness should not be setting any state that should be defined within the input protobuf message

[buffalojoec]

ideally these features should just be passed in through the fuzzing input. the harness should not be setting any state that should be defined within the input protobuf message

Makes sense. For now I'm going to wait on this change, but ideally any fixture that doesn't have the syscall feature enabled is never going to pass in the BPF version. Maybe we can figure out another way, like generating fixtures with the feature enabled?