
In some platform IRQ allocation may be failed because it can't support so many MSI vectors. Driver can't be loaded in this platform. Implement one MSI vector dynamic support. MSI vector number is defined in platform driver, so add platform API to show whether platform is in one MSI vector mode or not. Change-Id: I5e87ec456b654701a195c793087f078cf7647a3c CRs-Fixed: 3290815