mailmap: Update entry for Akhil P Oommen

mailmap: Update entry for Akhil P Oommen

A new policy within qualcomm requires me to use a new email address
for all future contributions to Linux kernel. Update the mailmap to
map my old email addresses to the new one, ie akhilpo@oss.qualcomm.com

Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Link: https://lore.kernel.org/lkml/20250603121508.296678-1-quic_akhilpo@quicinc.com
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>