nextcloud_notify_push has ring 0.17.7 in crates.inc. Drop BDEP on
rust-ring and reduce NOT_FOR_ARCHS. 

OK?


diff --git Makefile Makefile
index a4b8f590c93..8f87e36ee48 100644
--- Makefile
+++ Makefile
@@ -1,5 +1,5 @@
-# ring-v0.16.20 does not support those archs
-NOT_FOR_ARCHS = powerpc64 riscv64 sparc64
+# ring-v0.17 does not support this arch
+NOT_FOR_ARCHS =		sparc64
 
 # 20220112 - build often fails due to out of memory
 # memory allocation of 402653184 bytes failed
@@ -32,6 +32,4 @@ WANTLIB += ${MODCARGO_WANTLIB} m
 CONFIGURE_STYLE =	cargo
 SEPARATE_BUILD =	Yes
 
-BUILD_DEPENDS +=	security/rust-ring
-
 .include <bsd.port.mk>