google-sargo: replace hexagonrpcd config in firmware openrc subpackage

In !5688 (merged), a Pixel 3a subpackage for OpenRC configuration dependent on non-free firmware was added. This includes the HexagonRPCD configuration, but the new subpackage isn't marked as replacing the original configuration from hexagonrpcd-openrc. Move the replaces= declaration to the new subpackage.

device/community/device-google-sargo/APKBUILD

@@ -68,6 +68,7 @@ nonfree_firmware_openrc() {
 	# Enable HexagonRPCD by default, but not if the user installed this
 	# package then disabled it.
 	install="$subpkgname.post-install"
+	replaces="hexagonrpcd-openrc"
 	# The FastRPC service is only enabled when non-free firmware is installed.
 	install -Dm755 "$srcdir"/no-hexagonrpcd-on-suspend.sh \
 		"$subpkgdir"/etc/elogind/system-sleep/no-hexagonrpcd-on-suspend.sh