virtual/ldb: Sync with Gentoo

It's from Gentoo commit 521efdd96baef2efacb8fcc4c8ee1fc727f6c0c7.

Signed-off-by: Mathieu Tortuyaux <[email protected]>

Author: Flatcar Buildbot

sdk_container/src/third_party/portage-stable/virtual/ldb/ldb-2.8.1.ebuild

@@ -6,6 +6,6 @@ EAPI=8
 DESCRIPTION="Virtual for samba project's ldb"
 
 SLOT="0/2.9.2"
-KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ~mips ppc ppc64 ~riscv ~s390 ~sparc x86"
+KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ~mips ppc ppc64 ~riscv ~s390 sparc x86"
 
 RDEPEND="sys-libs/ldb:${SLOT}"