main/postmarketos-ui-kodi: Add armv7 (MR 3647)

flatbuffers should have been available on armv7,
since aports 0f3295fb0660f5caf59b8b2385f7c9305f1d57f0

[ci:skip-vercheck]
[ci:skip-build]: already built successfully in CI

main/postmarketos-ui-kodi/APKBUILD

@@ -5,7 +5,8 @@ pkgver=2
 pkgrel=4
 pkgdesc="(GBM) 10-foot UI useful on TV's"
 url="https://kodi.tv"
-arch="x86 x86_64 aarch64" # flatbuffers missing on armhf and armv7
+# kodi does not know of other archs
+arch="x86 x86_64 aarch64 armv7" # flatbuffers missing on armhf
 license="GPL-3.0-or-later"
 depends="
 	elogind