efl e-module.inc: fix fetching in multi-lib configs

Using ${PN} in URL's will get messed up in multi-lib configs, where
that can be expanded to things like lib32-${BPN}.
We should use ${BPN} instead.

Signed-off-by: Frederico Cadete <frederico.cadete@awtce.be>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
(cherry picked from commit 0e10dc716aba73c8189e69c4da8858c48112541e)
Signed-off-by: Armin Kuster <akuster808@gmail.com>