package/python3-pyelftools: use PYTHON3_PYELFTOOLS_VERSION

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/python3-pyelftools/python3-pyelftools.mk

@@ -6,7 +6,7 @@
 
 # Please keep in sync with package/python-pyelftools/python-pyelftools.mk
 PYTHON3_PYELFTOOLS_VERSION = 0.25
-PYTHON3_PYELFTOOLS_SOURCE = pyelftools-$(PYTHON_PYELFTOOLS_VERSION).tar.gz
+PYTHON3_PYELFTOOLS_SOURCE = pyelftools-$(PYTHON3_PYELFTOOLS_VERSION).tar.gz
 PYTHON3_PYELFTOOLS_SITE = https://files.pythonhosted.org/packages/fa/9a/0674cb1725196568bdbca98304f2efb17368b57af1a4bb3fc772c026f474
 PYTHON3_PYELFTOOLS_LICENSE = Public domain
 PYTHON3_PYELFTOOLS_LICENSE_FILES = LICENSE