Handle musl headers without __NR_riscv_hwprobe defined

app/streaming/streamutils.cpp

@@ -38,7 +38,6 @@
 #include <asm/hwprobe.h>
 #include <sys/syscall.h>
 #else
-#define __NR_riscv_hwprobe 258
 struct riscv_hwprobe {
     int64_t key;
     uint64_t value;
@@ -46,6 +45,10 @@ struct riscv_hwprobe {
 #define RISCV_HWPROBE_KEY_IMA_EXT_0 4
 #endif
 
+#ifndef __NR_riscv_hwprobe
+#define __NR_riscv_hwprobe 258
+#endif
+
 // RISC-V Scalar AES [E]ncryption and [D]ecryption
 #ifndef RISCV_HWPROBE_EXT_ZKND
 #define RISCV_HWPROBE_EXT_ZKND (1 << 11)