git-mailrc: Update SPI custodian

Update git-mailrc with alias and nick name details.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
diff --git a/doc/git-mailrc b/doc/git-mailrc
index 2cacaa0..251586e 100644
--- a/doc/git-mailrc
+++ b/doc/git-mailrc
@@ -18,6 +18,7 @@
 alias gruss          Graeme Russ <graeme.russ@gmail.com>
 alias hs             Heiko Schocher <hs@denx.de>
 alias iwamatsu       Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+alias jagan	     Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
 alias jasonjin       Jason Jin <jason.jin@freescale.com>
 alias jhersh         Joe Hershberger <joe.hershberger@gmail.com>
 alias kimphill       Kim Phillips <kim.phillips@freescale.com>
@@ -106,5 +107,6 @@
 alias mmc            uboot, panto
 alias nand           uboot, scottwood
 alias net            uboot, jhersh
+alias spi	     uboot, jagan
 alias usb            uboot, marex
 alias video          uboot, ag