databases/py-aiosqlite: Fix build

The previous commit was done by mistake (some work in progress leftover
and forgotten that got committed after a poudriere build that not build
this port succeeded).

Fix the port to make it buildable again.  No need to bump PORTREVISION
since the port was completely unbuildable.

Pointy hat to:	me

databases/py-aiosqlite/Makefile

@@ -10,11 +10,14 @@ WWW=		https://pypi.python.org/pypi/aiosqlite
 
 LICENSE=	MIT
 
+BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}flit-core>2:devel/py-flit-core@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}sqlite3>0:databases/py-sqlite3@${PY_FLAVOR}
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}sqlite3>0:databases/py-sqlite3@${PY_FLAVOR}
 
 USES=		python:3.7+
-USE_PYTHON=	autoplist distutils
+USE_PYTHON=	autoplist pep517
 
 NO_ARCH=	yes
+MAKE_ENV+=	PYTHONDONTWRITEBYTECODE=1
 
 .include <bsd.port.mk>