gs-hardware-support-context-dialog: Initialize relation_comparand variable
It can be left uninitialized in some cases, thus set it some sane values, rather than comparing with unpredictable values.
This had been discovered by a Coverity Scan:
gnome-software-46.1/src/gs-hardware-support-context-dialog.c:462:4: var_decl: Declaring variable "relation_comparand" without initializer.
gnome-software-46.1/src/gs-hardware-support-context-dialog.c:506:4: uninit_use_in_call: Using uninitialized value "relation_comparand.max" when calling "evaluate_display_comparison".
gnome-software-46.1/src/gs-hardware-support-context-dialog.c:506:4: uninit_use_in_call: Using uninitialized value "relation_comparand.min" when calling "evaluate_display_comparison".
504| }
505|
506|-> if (evaluate_display_comparison (display_lengths[AS_DISPLAY_LENGTH_KIND_SMALL], comparator, relation_comparand)) {
507| *mobile_relation_kind_out = max_relation_kind (*mobile_relation_kind_out, as_relation_get_kind (relation));
508| *mobile_match_out = TRUE;