Fix platforms

Author: ben221199

snapcraft.yaml

@@ -29,19 +29,27 @@ parts:
     override-build: go build -o ${CRAFT_PART_INSTALL}/bin/lbry-cli
 
 platforms:
-  - build-on: amd64
+  amd64:
+    build-on: amd64
     build-for: amd64
-  - build-on: amd64
+  arm64:
+    build-on: amd64
     build-for: arm64
-  - build-on: amd64
+  armhf:
+    build-on: amd64
     build-for: armhf
-  - build-on: amd64
+  i386:
+    build-on: amd64
     build-for: i386
-  - build-on: amd64
+  powerpc:
+    build-on: amd64
     build-for: powerpc
-  - build-on: amd64
+  ppc64el:
+    build-on: amd64
     build-for: ppc64el
-  - build-on: amd64
+  riscv64:
+    build-on: amd64
     build-for: riscv64
-  - build-on: amd64
+  s390x:
+    build-on: amd64
     build-for: s390x