devtools: python: add support for pycryptodomx

pycryptodome is a fork of pycrypto.

it can be installed as a drop-in replacement for pycrypto (this is refered as pycryptodome)
or an independent library that is install alongside pycrypto ( this is refered as pycryptodomex)
see https://pycryptodome.readthedocs.io/en/latest/src/installation.html for more details.
This commit installs it as independent library.

Signed-off-by: Silvano di Ninno <silvano.dininno@nxp.com>

meta-bsp/recipes-devtools/python/python-pycryptodome.inc

@@ -0,0 +1,31 @@
+SUMMARY = "Cryptographic library for Python"
+DESCRIPTION = "PyCryptodome is a self-contained Python package of low-level \
+ cryptographic primitives.\
+This library is a fork of the pycrypto library. It can be installed as a drop-in replacement\
+ or an independent library that works along side pycrypto."
+
+HOMEPAGE = "http://www.pycryptodome.org"
+LICENSE = "PD & BSD-2-Clause"
+LIC_FILES_CHKSUM = "file://LICENSE.rst;md5=6dc0e2a13d2f25d6f123c434b761faba"
+
+SRC_URI[md5sum] = "46ba513d95b6e323734074d960a7d57b"
+SRC_URI[sha256sum] = "22d970cee5c096b9123415e183ae03702b2cd4d3ba3f0ced25c4e1aba3967167"
+inherit pypi
+
+RDEPENDS_${PN} += " \
+    ${PYTHON_PN}-io \
+    ${PYTHON_PN}-math \
+"
+
+RDEPENDS_${PN}-tests += " \
+    ${PYTHON_PN}-unittest \
+"
+
+PACKAGES =+ "${PN}-tests"
+
+FILES_${PN}-tests += " \
+    ${PYTHON_SITEPACKAGES_DIR}/Cryptodome/SelfTest/ \
+    ${PYTHON_SITEPACKAGES_DIR}/Cryptodome/SelfTest/__pycache__/ \
+"
+
+BBCLASSEXTEND = "native nativesdk"

meta-bsp/recipes-devtools/python/python3-pycryptodomex_3.9.4.bb

@@ -0,0 +1,7 @@
+require python-pycryptodome.inc
+inherit setuptools3
+
+# This recipe install pycryptodome as an independent library.
+do_configure_prepend () {
+touch ${S}/.separate_namespace
+}