package/eigen: use gitlab macro

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 11176ddc1be2f49d118b73ccbbd3889957822c5c)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/eigen/eigen.mk

@@ -6,7 +6,7 @@
 
 EIGEN_VERSION = 3.3.7
 EIGEN_SOURCE = eigen-$(EIGEN_VERSION).tar.bz2
-EIGEN_SITE = https://gitlab.com/libeigen/eigen/-/archive/$(EIGEN_VERSION)
+EIGEN_SITE = $(call gitlab,libeigen,eigen,$(EIGEN_VERSION))
 EIGEN_LICENSE = MPL2, BSD-3-Clause, LGPL-2.1
 EIGEN_LICENSE_FILES = COPYING.MPL2 COPYING.BSD COPYING.LGPL COPYING.README
 EIGEN_INSTALL_STAGING = YES