Rename maxMloLinkCount to maxMloStrLinkCount

The maximum number of Simultaneous Transmit Receive (STR) links used in
Multi-Link Operation can be different from the maximum radios supported
by the chip.Explicitly mention the max links as max STR links. Update
the description and usage of the capability field.

Bug: 267963579
Test: m android.hardware.wifi-update-api
Change-Id: I5691fcc44c60821766fe41e67624e458ba051059