[v1.07] Fix bug introduced by #251 (reported in #375)

PR #251 added:

```
if defined (__FreeBSD__) || defined (__APPLE__)
...
get_sys_info_by_name
```

that function is available in src/common/sysctl.c.
In the Makefile it builds with sysctl.c but only under FreeBSD:

```
ifeq ($(os), FreeBSD)
```

So it fails under macOS as reported by #375

Makefile

@@ -30,7 +30,7 @@ ifneq ($(OS),Windows_NT)
 			HEADERS += $(SRC_DIR)freq/freq.h
 			CFLAGS += -pthread
 		endif
-		ifeq ($(os), FreeBSD)
+		ifeq ($(os), $(filter $(os), FreeBSD Darwin))
 			SOURCE += $(SRC_COMMON)sysctl.c
 			HEADERS += $(SRC_COMMON)sysctl.h
 		endif

src/common/cpu.h

@@ -138,7 +138,7 @@ struct features {
 
 struct extensions {
   char* str;
-  bool* mask; // allocated at runtime with size RISCV_ISA_EXT_ID_MAX-1
+  bool* mask; // allocated at runtime with size RISCV_ISA_EXT_ID_MAX
 };
 
 struct cpuInfo {

src/common/global.c

@@ -62,7 +62,7 @@
 #endif
 
 #ifndef GIT_FULL_VERSION
-  static const char* VERSION = "1.06";
+  static const char* VERSION = "1.07";
 #endif
 
 enum {