mailmap: correct Dikshita Agarwal's Qualcomm email address

I recently sent a patch to map Dikshita's old CAF address to his current
one @ Qualcomm.  It turned out however, that he has two of them, with the
@quicinc.com one meant for upstream contributions.  Fix it.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Konrad Dybcio <[email protected]>
Cc: Dikshita Agarwal <[email protected]>
Cc: Andy Gross <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Baolin Wang <[email protected]>
Cc: Bjorn Andersson <[email protected]>
Cc: Colin Ian King <[email protected]>
Cc: Kirill Tkhai <[email protected]>
Cc: Marijn Suijten <[email protected]>
Cc: Qais Yousef <[email protected]>
Cc: Vasily Averin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: konradybcio

.mailmap

@@ -121,7 +121,7 @@ Dengcheng Zhu <[email protected]> <[email protected]>
 Dengcheng Zhu <[email protected]> <[email protected]>
 Dengcheng Zhu <[email protected]> <[email protected]>
 <[email protected]> <[email protected]>
-Dikshita Agarwal <[email protected].com> <[email protected]>
+Dikshita Agarwal <quic_dikshita@quicinc.com> <[email protected]>
 Dmitry Baryshkov <[email protected]>
 Dmitry Baryshkov <[email protected]> <[[email protected]]>
 Dmitry Baryshkov <[email protected]> <[email protected]>