git-mailrc: add me as a maintainer of UniPhier platform

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/doc/git-mailrc b/doc/git-mailrc
index 0fba100..35f2eb2 100644
--- a/doc/git-mailrc
+++ b/doc/git-mailrc
@@ -63,6 +63,7 @@
 alias tegra          uboot, sjg, Tom Warren <twarren@nvidia.com>, Stephen Warren <swarren@nvidia.com>
 alias tegra2         tegra
 alias ti             uboot, trini
+alias uniphier       uboot, masahiro
 alias zynq           uboot, monstr
 
 alias avr32          uboot, abiessmann