Hardly 'waving the white flag'
To suggest that most such battles are resolved out of court, since that's true. If Qualcomm dropped their countersuit, that would be waving the white flag.
The CEO of Qualcomm says he hopes to settle his company's licensing dispute with Apple out of court. Speaking at a conference in Aspen, Colorado, Steve Mollenkopf suggested the SnapDragon chip designer would push for a settlement rather than rely on a jury to determine if Apple was liable for back payment of royalties. "There …
Then it would be up to the others to sue, or the FTC bring action on their behalf, over Qualcomm violating the "non-discriminatory" requirements of FRAND licensing.
Clearly it would be safe to assume that if Apple sues Qualcomm, then settles out of court and drops the suit, that they'd only do that if they were getting a better deal than they were previously.
It is a little harder for Qualcomm's other customers to sue, because they use Qualcomm for both cellular and application processor, and don't have a CPU patent portfolio of their own (Samsung will, but not any of the other Android OEMs) to countersue them.
I expect if Apple is successful, Samsung may follow suit, but I'm not sure the other Android OEMs would. Too risky for them. If it was such a great idea, they would have all done it before Apple. But the fact that even Apple feared suing Qualcomm until they began executing their plan to get away from them speaks volumes.