[ver] update version number to v1.1.2

Author: kawakami-k

xbyak_aarch64/xbyak_aarch64_version.h

@@ -1,5 +1,5 @@
 static const int majorVersion = 1;
 static const int minorVersion = 1;
-static const int patchVersion = 1;
+static const int patchVersion = 2;
 static int getVersion() { return (majorVersion << 16) + (minorVersion << 8) + patchVersion; }
-static const char *getVersionString() { return "1.1.1"; }
+static const char *getVersionString() { return "1.1.2"; }