disable mail for swarren

I haven't been involved in U-Boot development for quite a while, so
CCing me on patches isn't currently useful. Add a .mailmap entry that I
believe will turn off patch CCs. This can always be removed if I become
active again! Remove myself from a few MAINTAINERS failed and the git
mailrc file too.
diff --git a/.mailmap b/.mailmap
index 5c48114..830a263 100644
--- a/.mailmap
+++ b/.mailmap
@@ -127,6 +127,8 @@
 Stefan Roese <sr@denx.de> <stroese>
 Stefano Babic <sbabic@nabladev.com>
 Stefano Stabellini <stefano.stabellini@amd.com> <stefano.stabellini@xilinx.com>
+No generic patch CC mail please <noreply@example.com> <swarren@wwwdotorg.org>
+No generic patch CC mail please <noreply@example.com> <swarren@nvidia.com>
 Sumit Garg <sumit.garg@kernel.org> <sumit.garg@linaro.org>
 Tom Rini <trini@konsulko.com> <trini@ti.com>
 Tomas Thoresen <tomas.thoresen@amd.com> <tomast@xilinx.com>
diff --git a/board/compal/paz00/MAINTAINERS b/board/compal/paz00/MAINTAINERS
index ee2b2e9..ba174cd 100644
--- a/board/compal/paz00/MAINTAINERS
+++ b/board/compal/paz00/MAINTAINERS
@@ -1,6 +1,5 @@
 PAZ00 BOARD
 M:	Tom Warren <twarren@nvidia.com>
-M:	Stephen Warren <swarren@nvidia.com>
 S:	Maintained
 F:	board/compal/paz00/
 F:	include/configs/paz00.h
diff --git a/board/compulab/trimslice/MAINTAINERS b/board/compulab/trimslice/MAINTAINERS
index 85b1200..4eb868c 100644
--- a/board/compulab/trimslice/MAINTAINERS
+++ b/board/compulab/trimslice/MAINTAINERS
@@ -1,6 +1,5 @@
 TRIMSLICE BOARD
 M:	Tom Warren <twarren@nvidia.com>
-M:	Stephen Warren <swarren@nvidia.com>
 S:	Maintained
 F:	board/compulab/trimslice/
 F:	include/configs/trimslice.h
diff --git a/board/nvidia/beaver/MAINTAINERS b/board/nvidia/beaver/MAINTAINERS
index 26bcacc..20d5836 100644
--- a/board/nvidia/beaver/MAINTAINERS
+++ b/board/nvidia/beaver/MAINTAINERS
@@ -1,6 +1,5 @@
 BEAVER BOARD
 M:	Tom Warren <twarren@nvidia.com>
-M:	Stephen Warren <swarren@nvidia.com>
 S:	Maintained
 F:	board/nvidia/beaver/
 F:	include/configs/beaver.h
diff --git a/board/nvidia/jetson-tk1/MAINTAINERS b/board/nvidia/jetson-tk1/MAINTAINERS
index a5c687d..f0d8f5e 100644
--- a/board/nvidia/jetson-tk1/MAINTAINERS
+++ b/board/nvidia/jetson-tk1/MAINTAINERS
@@ -1,5 +1,5 @@
 JETSON-TK1 BOARD
-M:	Stephen Warren <swarren@nvidia.com>
+M:	Tom Warren <twarren@nvidia.com>
 S:	Maintained
 F:	board/nvidia/jetson-tk1/
 F:	include/configs/jetson-tk1.h
diff --git a/board/nvidia/p2771-0000/MAINTAINERS b/board/nvidia/p2771-0000/MAINTAINERS
index cf4913a..1a49e63 100644
--- a/board/nvidia/p2771-0000/MAINTAINERS
+++ b/board/nvidia/p2771-0000/MAINTAINERS
@@ -1,5 +1,5 @@
 P2771-0000 BOARD
-M:	Stephen Warren <swarren@nvidia.com>
+M:	Tom Warren <twarren@nvidia.com>
 S:	Maintained
 F:	board/nvidia/p2771-0000/
 F:	include/configs/p2771-0000.h
diff --git a/board/nvidia/ventana/MAINTAINERS b/board/nvidia/ventana/MAINTAINERS
index 285b84d..ba65a2b 100644
--- a/board/nvidia/ventana/MAINTAINERS
+++ b/board/nvidia/ventana/MAINTAINERS
@@ -1,6 +1,5 @@
 VENTANA BOARD
 M:	Tom Warren <twarren@nvidia.com>
-M:	Stephen Warren <swarren@nvidia.com>
 S:	Maintained
 F:	board/nvidia/ventana/
 F:	include/configs/ventana.h
diff --git a/doc/git-mailrc b/doc/git-mailrc
index 6214dae..50f896d 100644
--- a/doc/git-mailrc
+++ b/doc/git-mailrc
@@ -74,7 +74,7 @@
 alias snapdragon     uboot, mateusz
 alias socfpga        uboot, marex, dinh, simongoldschmidt, tienfong
 alias sunxi          uboot, jagan, apritzel
-alias tegra          uboot, sjg, Tom Warren <twarren@nvidia.com>, Stephen Warren <swarren@nvidia.com>
+alias tegra          uboot, sjg, Tom Warren <twarren@nvidia.com>
 alias tegra2         tegra
 alias ti             uboot, trini
 alias uniphier       uboot, masahiro