www-client/firefox-41: restored patch for bug 557956

The firefox-41.0 release dropped the libc patch needed to fix
bug 557956.  This commit revbumps to 41.0-r1, including the
patch again.

Bug: https://bugs.gentoo.org/show_bug.cgi?id=557956#c14
Package-Manager: portage-2.2.20.1

www-client/firefox/firefox-41.0-r1.ebuild

@@ -140,6 +140,7 @@ src_prepare() {
 	EPATCH_SUFFIX="patch" \
 	EPATCH_FORCE="yes" \
 	epatch "${WORKDIR}/firefox"
+	epatch "${FILESDIR}"/${PN}-38-dont-hardcode-libc-soname.patch #557956
 
 	# Allow user to apply any additional patches without modifing ebuild
 	epatch_user