fix multiarch install paths

debian/libhttp-parser-dev.install

@@ -1,4 +1,4 @@
 #!/usr/bin/dh-exec
 
 http_parser.h usr/include
-libhttp_parser.a usr/lib/http-parser/${DEB_HOST_MULTIARCH}/
+libhttp_parser.a usr/lib/${DEB_HOST_MULTIARCH}/

debian/libhttp-parser.install

@@ -1,3 +1,3 @@
 #!/usr/bin/dh-exec
 
-libhttp_parser.so usr/lib/http-parser/${DEB_HOST_MULTIARCH}/
+libhttp_parser.so usr/lib/${DEB_HOST_MULTIARCH}/