dev-haskell/old-time: Sync keywords

Signed-off-by: hololeap <hololeap@protonmail.com>

Author: hololeap

dev-haskell/old-time/old-time-1.1.0.4.ebuild

@@ -13,7 +13,7 @@ HOMEPAGE="https://hackage.haskell.org/package/old-time"
 
 LICENSE="BSD"
 SLOT="0/${PV}"
-KEYWORDS="~amd64 ~arm64"
+KEYWORDS="~amd64 ~arm64 ~ppc64 ~riscv ~x86"
 
 RDEPEND=">=dev-haskell/old-locale-1.0:=[profile?] <dev-haskell/old-locale-1.1:=[profile?]
 	>=dev-lang/ghc-9.0.2:=