package/python-pillow: bump to version 7.0.0

This patch bump Pillow to version 7.0.0.
Latest Pillow version doesn't support python2 anymore, thus
enforce the dependency on python3.

It updates also the LICENSE hash due to copyright year update.

Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/python-pillow/Config.in

@@ -1,5 +1,6 @@
 config BR2_PACKAGE_PYTHON_PILLOW
 	bool "python-pillow"
+	depends on BR2_PACKAGE_PYTHON3
 	help
 	  Pillow is the "friendly" PIL fork by Alex Clark and
 	  Contributors. PIL is the Python Imaging Library by Fredrik

package/python-pillow/python-pillow.hash

@@ -1,5 +1,5 @@
-# md5, sha256 from https://pypi.org/pypi/pillow/json
-md5	13acde283ece6ac69f62609fa108d316  Pillow-6.2.1.tar.gz
-sha256	bf4e972a88f8841d8fdc6db1a75e0f8d763e66e3754b03006cbc3854d89f1cb1  Pillow-6.2.1.tar.gz
+# md5, sha256 from https://pypi.org/project/Pillow/
+md5	d099946335c1ba372f5b1fa68ca71645  Pillow-7.0.0.tar.gz
+sha256	4d9ed9a64095e031435af120d3c910148067087541131e82b3e8db302f4c8946  Pillow-7.0.0.tar.gz
 # Locally computed sha256 checksums
-sha256	64ea4328ed56392b423ef968519a9ad427e3de9b985862c95ed2ed4d793d22ee  LICENSE
+sha256	04a04a908e52921829c7f51528e5619c79becdde99c484ab7d4f235e2927968c  LICENSE

package/python-pillow/python-pillow.mk

@@ -4,9 +4,9 @@
 #
 ################################################################################
 
-PYTHON_PILLOW_VERSION = 6.2.1
+PYTHON_PILLOW_VERSION = 7.0.0
+PYTHON_PILLOW_SITE = https://files.pythonhosted.org/packages/39/47/f28067b187dd664d205f75b07dcc6e0e95703e134008a14814827eebcaab
 PYTHON_PILLOW_SOURCE = Pillow-$(PYTHON_PILLOW_VERSION).tar.gz
-PYTHON_PILLOW_SITE = https://files.pythonhosted.org/packages/5b/bb/cdc8086db1f15d0664dd22a62c69613cdc00f1dd430b5b19df1bea83f2a3
 PYTHON_PILLOW_LICENSE = PIL Software License
 PYTHON_PILLOW_LICENSE_FILES = LICENSE
 PYTHON_PILLOW_SETUP_TYPE = setuptools