QUALCOMM, Inc. (NASDAQ:QCOM) announced today that the company has reached a definitive agreement with CSR Plc (LON:CSR) to acquire the UK chip maker for $2.5 billion cash. The London chipmaker would work under Qualcomm’s subsidiary unit, Qualcomm Global Trading Pte. Ltd. This acquisition would help the Snapdragon chipmaker to expand its global presence and aid…