MAINTAINERS, git-mailrc: socfpga: Change co-maintainer to Tien Fong Chee

I'm no longer work in Intel, change Intel SoCFPGA co-maintainer to
Tien Fong Chee.

Signed-off-by: Ley Foon Tan <lftan.linux@gmail.com>
Acked-by: Marek Vasut <marex@denx.de>
diff --git a/doc/git-mailrc b/doc/git-mailrc
index 3ed3802..001681c 100644
--- a/doc/git-mailrc
+++ b/doc/git-mailrc
@@ -46,6 +46,7 @@
 alias sjg            Simon Glass <sjg@chromium.org>
 alias smcnutt        Scott McNutt <smcnutt@psyent.com>
 alias stroese        Stefan Roese <sr@denx.de>
+alias tienfong       Tien Fong Chee <tien.fong.chee@intel.com>
 alias trini          Tom Rini <trini@konsulko.com>
 alias wd             Wolfgang Denk <wd@denx.de>
 alias priyankajain   Priyanka Jain <priyanka.jain@nxp.com>
@@ -69,7 +70,7 @@
 alias s5pc           samsung
 alias samsung        uboot, prom
 alias snapdragon     uboot, mateusz
-alias socfpga        uboot, marex, dinh, simongoldschmidt, leyfoon
+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 tegra2         tegra