testing/ebusd: disable on ppc64le, riscv64, s390x and update description

testing/ebusd/APKBUILD

@@ -2,10 +2,11 @@
 # Maintainer: Tim <timstanleydev@gmail.com>
 pkgname=ebusd
 pkgver=21.3
-pkgrel=0
-pkgdesc="Ebus daemon"
+pkgrel=1
+pkgdesc="Daemon for communication with eBUS heating systems"
 url="https://github.com/john30/ebusd"
-arch="all"
+# Upstream only supports these archs.
+arch="x86 x86_64 aarch64 armhf armv7"
 license="GPL-3.0-only"
 makedepends="argp-standalone cmake mosquitto-dev"
 source="$pkgname-$pkgver.tar.gz::https://github.com/john30/ebusd/archive/refs/tags/v$pkgver.tar.gz"