ARC: Update ARC architecture maintainers

Update ARC architecture maintainers and add
uboot-snps-arc@synopsys.com mailing list.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 44eeefa..9f653a0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -55,7 +55,9 @@
 		-----------------------------------
 ARC
 M:	Alexey Brodkin <alexey.brodkin@synopsys.com>
+M:	Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
 S:	Maintained
+L:	uboot-snps-arc@synopsys.com
 T:	git git://git.denx.de/u-boot-arc.git
 F:	arch/arc/