MAINTAINERS: Update Neeraj's email address

Update my email-address in MAINTAINERS and .mailmap entries to my
kernel.org account.

Signed-off-by: Neeraj Upadhyay <neeraj.upadhyay@kernel.org>
Reviewed-by: Joel Fernandes <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>

.mailmap

@@ -445,7 +445,8 @@ Nadav Amit <nadav.amit@gmail.com> <namit@cs.technion.ac.il>
 Nadia Yvette Chambers <nyc@holomorphy.com> William Lee Irwin III <wli@holomorphy.com>
 Naoya Horiguchi <naoya.horiguchi@nec.com> <n-horiguchi@ah.jp.nec.com>
 Nathan Chancellor <nathan@kernel.org> <natechancellor@gmail.com>
-Neeraj Upadhyay <quic_neeraju@quicinc.com> <neeraju@codeaurora.org>
+Neeraj Upadhyay <neeraj.upadhyay@kernel.org> <quic_neeraju@quicinc.com>
+Neeraj Upadhyay <neeraj.upadhyay@kernel.org> <neeraju@codeaurora.org>
 Neil Armstrong <neil.armstrong@linaro.org> <narmstrong@baylibre.com>
 Nguyen Anh Quynh <aquynh@gmail.com>
 Nicholas Piggin <npiggin@gmail.com> <npiggen@suse.de>

MAINTAINERS

@@ -18591,7 +18591,7 @@ F:	tools/testing/selftests/resctrl/
 READ-COPY UPDATE (RCU)
 M:	"Paul E. McKenney" <paulmck@kernel.org>
 M:	Frederic Weisbecker <frederic@kernel.org> (kernel/rcu/tree_nocb.h)
-M:	Neeraj Upadhyay <quic_neeraju@quicinc.com> (kernel/rcu/tasks.h)
+M:	Neeraj Upadhyay <neeraj.upadhyay@kernel.org> (kernel/rcu/tasks.h)
 M:	Joel Fernandes <joel@joelfernandes.org>
 M:	Josh Triplett <josh@joshtriplett.org>
 M:	Boqun Feng <boqun.feng@gmail.com>