Raised skill range for ALL_RIDING skill support -- removes 2 errors on console

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@15244 54d463be-8e91-2dee-dedb-b68131a5f0ec

src/common/mmo.h

@@ -89,7 +89,7 @@
 #define MAX_ZENY 1000000000
 #define MAX_FAME 1000000000
 #define MAX_CART 100
-#define MAX_SKILL 2536
+#define MAX_SKILL 2540
 #define GLOBAL_REG_NUM 256
 #define ACCOUNT_REG_NUM 64
 #define ACCOUNT_REG2_NUM 16