main/lxc: add init.lxc.static

this is needed for lxc-execute to work
add libcap-static to makedepends
fixes #10821

main/lxc/APKBUILD

@@ -4,13 +4,14 @@
 pkgname=lxc
 pkgver=3.2.1
 _pkgver=${pkgver/_rc/.rc}
-pkgrel=0
+pkgrel=1
 pkgdesc="Userspace interface for the Linux kernel containment features"
 url="https://linuxcontainers.org/lxc/"
 arch="all"
 license="GPL"
 makedepends="
 	libcap-dev
+	libcap-static
 	libseccomp-dev
 	linux-pam-dev
 	linux-headers