It is to fix possible build break of ethumb
I got below message.
lib/edje/.libs/libedje.so: undefined reference to `ecore_imf_context_retrieve_selection_callback_set'
collect2: error: ld returned 1 exit status
make[4]: *** [bin/ethumb/ethumb] Error 1
EFL_INTERNAL_DEPEND_PKG([ETHUMB], [ecore])
EFL_INTERNAL_DEPEND_PKG([ETHUMB], [ecore-evas])
EFL_INTERNAL_DEPEND_PKG([ETHUMB], [ecore-file])
+EFL_INTERNAL_DEPEND_PKG([ETHUMB], [ecore-imf])
EFL_INTERNAL_DEPEND_PKG([ETHUMB], [edje])
## modules