git-mailrc: Change fdt maintainer

Add myself as fdt maintainer.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/doc/git-mailrc b/doc/git-mailrc
index 0985791..947f669 100644
--- a/doc/git-mailrc
+++ b/doc/git-mailrc
@@ -109,7 +109,7 @@
 alias cfi            uboot, stroese
 alias dfu            uboot, lukma
 alias kerneldoc      uboot, marex
-alias fdt            uboot, Jerry Van Baren <vanbaren@cideas.com>
+alias fdt            uboot, sjg
 alias i2c            uboot, hs
 alias kconfig        uboot, masahiro
 alias mmc            uboot, panto