ifSpeed equals ifHighSpeed

[maaaax]

Hi.

Like on our
"Aruba Instant On 1930 48G 4SFP/SFP+ Switch JL685A, InstantOn_1930_1.0.4.0 (133), Linux 4.4.120, U-Boot 2013.01 (V1.0.1.29)"
there could be other devices showing the wrong ifSpeed like 1000 for Gigabit, where it should be 4294967295, when ifHighSpeed is present.

As a quick workaround (which assumes that ifHighSpeed is present), I used:
} elsif ($self->{ifHighSpeed} or $self->{ifSpeed} == 4294967295) {

best regards,
maaaax