The U.S. International Trade Commission has issued a ban on U.S. imports of new cell phones containing certain Qualcomm semiconductors, which may include upcoming models such as the Motorola RAZR 2, but will not affect the iPhone. The commission has said it was banning the phones because the chips, which are found in 3G phones using EV-DO and WCDMA technology, violate a patent held by Broadcom Corp. Apple’s iPhone does not fall under the ban,…