Enable CONFIG_EPOLL.

Change-Id: Iedda72d5e75db50118bbb1ec67efc190c8781cea
diff --git a/arch/arc/configs/gfex250_defconfig b/arch/arc/configs/gfex250_defconfig
index bbb86a6..168e70e 100644
--- a/arch/arc/configs/gfex250_defconfig
+++ b/arch/arc/configs/gfex250_defconfig
@@ -82,7 +82,7 @@
 CONFIG_ELF_CORE=y
 # CONFIG_BASE_FULL is not set
 # CONFIG_FUTEX is not set
-# CONFIG_EPOLL is not set
+CONFIG_EPOLL=y
 # CONFIG_SIGNALFD is not set
 # CONFIG_TIMERFD is not set
 # CONFIG_EVENTFD is not set
diff --git a/arch/arc/configs/gffrenzy_defconfig b/arch/arc/configs/gffrenzy_defconfig
index 63aa54a..154276c 100644
--- a/arch/arc/configs/gffrenzy_defconfig
+++ b/arch/arc/configs/gffrenzy_defconfig
@@ -81,7 +81,7 @@
 CONFIG_ELF_CORE=y
 # CONFIG_BASE_FULL is not set
 # CONFIG_FUTEX is not set
-# CONFIG_EPOLL is not set
+CONFIG_EPOLL=y
 # CONFIG_SIGNALFD is not set
 # CONFIG_TIMERFD is not set
 # CONFIG_EVENTFD is not set