[PATCH v2] CI: add Qualcomm requirements.txt for world build

The mkmbn Python tool used for some Qualcomm platforms needs the
cryptography module, make sure it's installed so the world build can
succeed by adding a new requirements.txt.

Signed-off-by: Casey Connolly <[email protected]>
---
Changes since v1:
 - Use a new requirements.txt instead of adding the dependency directly
 - Document requirement in doc/board/qualcomm/signing.rst
 - v1: https://lore.kernel.org/u-boot/[email protected]/
---
 .azure-pipelines.yml            | 1 +
 .gitlab-ci.yml                  | 1 +
 board/qualcomm/requirements.txt | 1 +
 doc/board/qualcomm/signing.rst  | 3 +++
 4 files changed, 6 insertions(+)
 create mode 100644 board/qualcomm/requirements.txt

diff --git a/.azure-pipelines.yml b/.azure-pipelines.yml
index 4417ef4e5a50..d53488a8dc67 100644
--- a/.azure-pipelines.yml
+++ b/.azure-pipelines.yml
@@ -733,8 +733,9 @@ stages:
           python3 -m venv /tmp/venv
           . /tmp/venv/bin/activate
           pip install -r tools/binman/requirements.txt \
             -r tools/buildman/requirements.txt \
+            -r board/qualcomm/requirements.txt
             setuptools
           if [[ "${BUILDMAN}" != "" ]]; then
               ret=0;
               tools/buildman/buildman -o /tmp -PEWM ${BUILDMAN} ${OVERRIDE} || ret=$?;
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 245e422d72fa..99d7cc4a69a2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -153,8 +153,9 @@ build all platforms in a single job:
     - python3 -m venv /tmp/venv;
       . /tmp/venv/bin/activate;
       pip install -r tools/binman/requirements.txt
         -r tools/buildman/requirements.txt
+        -r board/qualcomm/requirements.txt
         setuptools
     - ret=0;
       git config --global --add safe.directory "${CI_PROJECT_DIR}";
       ./tools/buildman/buildman -o /tmp -PEWM -x xtensa || ret=$?;
diff --git a/board/qualcomm/requirements.txt b/board/qualcomm/requirements.txt
new file mode 100644
index 000000000000..2033083a01a7
--- /dev/null
+++ b/board/qualcomm/requirements.txt
@@ -0,0 +1 @@
+cryptography==50.0.0
diff --git a/doc/board/qualcomm/signing.rst b/doc/board/qualcomm/signing.rst
index 317cd57cefee..ad1d0faa58e9 100644
--- a/doc/board/qualcomm/signing.rst
+++ b/doc/board/qualcomm/signing.rst
@@ -26,4 +26,7 @@ For example:
 
 When you run make to build the ``u-boot.mbn`` target, ``mkmbn`` will inspect the DTB in your
 U-Boot image and try to match the compatible to the table, then it will build an ELF image and
 hash/sign it per the MBN spec.
+
+The mkmbn tool requires the python ``cryptography`` module, this can be installed in a virtualenv
+using pip, or from your distros package repositories.
-- 
2.53.0