init/epoll: clean up reorder-init-list warning

This change cleans up the following build warning:

warning: ISO C++ requires field designators to be specified in
declaration order; field 'events' will be initialized after field
'handler' [-Wreorder-init-list]

Bug: none
Test: TH
Change-Id: I9fe566b452438dc9f00f782fc4435905227a60c9
Signed-off-by: Neill Kapron <nkapron@google.com>