A Study to Evaluate the Safety of Dacomitinib for the First Line Treatment of Participants in India With Metastatic Non-Small-Cell Lung Cancer (NSCLC) With Change in a Gene. Single Arm Study to Evaluate the Safety of Dacomitinib for the First Line Treatment of Participants in India With Metastatic
Non-Small Cell Lung Cancer With Epidermal Growth Factor Receptor (EGFR)-Activating Mutations.