cross/crossdirect: fix rust breakage (!1139)

See:
* https://gitlab.alpinelinux.org/alpine/aports/issues/11349
* https://gitlab.alpinelinux.org/alpine/aports/-/commit/7bb907ec23f7672218ff018e4fdefdea2048ac23

cross/crossdirect/APKBUILD

@@ -17,7 +17,7 @@
 
 pkgname=crossdirect
 pkgver=4
-pkgrel=0
+pkgrel=1
 pkgdesc="Wrappers to launch native cross compilers in foreign chroots"
 url="https://postmarketOS.org"
 arch="all"
@@ -78,5 +78,5 @@ package() {
 	done
 }
 sha512sums="20b963322820de038257304c1eefa85767b78e242eda7459f06d70a1cfae5540a445aa7d5587024bf4d88a4bee28120ef9f5c2d24a648e71b542b9618318deb2  crossdirect.c
-c3492cf2bbf282d22585fb485a8a8950ddbd6e47faff472931072defa9c33ea757b72d455b2d608304c7e40f9c736fac2b9101b65accd48ad896bc7055ef0436  rustc.sh
+6be16ba88720e628a3ecc8fa53f8e7a21d2af268b0509745d989139874d6b94b640bfcff09575eaa19073810be6ef91169c1f83e94f5cf8e6819f2670d9408de  rustc.sh
 ea9bf8db3810d03d0a7395057f3d6e57f7127d87c55deaedc171c255288f5f3cc6fbcc680a5a1b92786cf573875d5dc22521173799fe2639acc97d0715ff905b  rust-qemu-linker.sh"

cross/crossdirect/rustc.sh

@@ -8,13 +8,13 @@ rust_triplet() {
 			echo "x86_64-alpine-linux-musl"
 			;;
 		armhf)
-			echo "arm-unknown-linux-musleabihf"
+			echo "armv6-alpine-linux-musleabihf"
 			;;
 		armv7)
-			echo "armv7-unknown-linux-musleabihf"
+			echo "armv7-alpine-linux-musleabihf"
 			;;
 		aarch64)
-			echo "aarch64-unknown-linux-musl"
+			echo "aarch64-alpine-linux-musl"
 			;;
 		*)
 			echo "ERROR: don't know the rust triple for $1!" >&2