Merge remote-tracking branch 'palmer/riscv-clone3' into fixes

This contains a single patch to properly implement clone3() on rv32,
which was missing before.  In theory this is a new feature, but it's
fixing a warning in checksyscalls that's now causing my build to fail so
I'm calling it a fix.

arch/riscv/include/uapi/asm/unistd.h

@@ -18,9 +18,10 @@
 #ifdef __LP64__
 #define __ARCH_WANT_NEW_STAT
 #define __ARCH_WANT_SET_GET_RLIMIT
-#define __ARCH_WANT_SYS_CLONE3
 #endif /* __LP64__ */
 
+#define __ARCH_WANT_SYS_CLONE3
+
 #include <asm-generic/unistd.h>
 
 /*