Deductions & credits

Yes.  When you complete the Foreign Tax Credit (FTC) section, there will be a page that asks for Other Gross income. Record the amount of the RSU that was taxed here and the the foreign tax credit will be based from this entry. This entry will not be entered as income in your tax return but is used strictly for the computation of your foreign tax credit.

I have included a screenshot in the FTC section where you will make this entry. The country shown and the amounts are hypothetical examples for illustrative purposes only.