package/opencv3: fix build with python 3.8

Fixes:
 - http://autobuild.buildroot.org/results/f9c58f66aabf5596c8ef96d1cd6d9f1065ee5fe4

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

package/opencv3/opencv3.mk

@@ -333,8 +333,8 @@ OPENCV3_CONF_OPTS += \
 	-DBUILD_opencv_python2=OFF \
 	-DBUILD_opencv_python3=ON \
 	-DPYTHON3_EXECUTABLE=$(HOST_DIR)/bin/python3 \
-	-DPYTHON3_INCLUDE_PATH=$(STAGING_DIR)/usr/include/python$(PYTHON3_VERSION_MAJOR)m \
-	-DPYTHON3_LIBRARIES=$(STAGING_DIR)/usr/lib/libpython$(PYTHON3_VERSION_MAJOR)m.so \
+	-DPYTHON3_INCLUDE_PATH=$(STAGING_DIR)/usr/include/python$(PYTHON3_VERSION_MAJOR) \
+	-DPYTHON3_LIBRARIES=$(STAGING_DIR)/usr/lib/libpython$(PYTHON3_VERSION_MAJOR).so \
 	-DPYTHON3_NUMPY_INCLUDE_DIRS=$(STAGING_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/site-packages/numpy/core/include \
 	-DPYTHON3_PACKAGES_PATH=/usr/lib/python$(PYTHON3_VERSION_MAJOR)/site-packages \
 	-DPYTHON3_NUMPY_VERSION=$(PYTHON_NUMPY_VERSION)