[z2693] Fix build for CMaNGOS z2451

Require CMaNGOS [z2451+]

(based on commit SD2[2993] - 3dc20b1)

Signed-off-by: Xfurry <xfurry@scriptdev2.com>

(based on commit SD2-TBC[s2777] - 5389b0f)

Signed-off-by: Xfurry <xfurry@scriptdev2.com>