add clang32 to more packages.

All packages which successfully built on clang64, for which all of their
dependencies are already available for clang32.

Batch 2

mingw-w64-python-markdown-math/PKGBUILD

@@ -10,7 +10,7 @@ pkgver=0.6
 pkgrel=1
 pkgdesc="Math extension for Python-Markdown (mingw-w64)"
 arch=('any')
-mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64')
+mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32')
 url='https://github.com/mitya57/python-markdown-math'
 license=('BSD')
 depends=("${MINGW_PACKAGE_PREFIX}-python"