MAINTAINERS: add tree entry for ARM/UniPhier architecture

Add T: entry for a new git tree, which I expect UniPhier SoC
updates will be pulled from.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
diff --git a/MAINTAINERS b/MAINTAINERS
index 0bbe4b1..a437901 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1822,6 +1822,7 @@
 ARM/UNIPHIER ARCHITECTURE
 M:	Masahiro Yamada <yamada.masahiro@socionext.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier.git
 S:	Maintained
 F:	arch/arm/boot/dts/uniphier*
 F:	arch/arm/include/asm/hardware/cache-uniphier.h