Phobos: Fix RISC-V support in std.math.hardware (#4333)

kinke · web-flow · commit 8ed521df8014 · 2023-02-26T17:53:16.000Z
The missing relevant pieces from ldc-developers/phobos#71.
diff --git a/runtime/phobos b/runtime/phobos
@@ -1 +1 @@
-Subproject commit 042c468fa019ab1ce4ce8e425c30b2482fc1754c
+Subproject commit 99cfa9a644646fbc16d44f76fb8ab70df5183174
