Server/SpellEffects: Changed SPELL_AURA_MOD_INCREASE_ENERGY to SPELL_AURA_MOD_INCREASE_MAX_POWER_FLAT

Signed-off-by: AriDEV <aridev666@gmail.com>
Merge branch 'master' of https://github.com/ProjectSkyfire/SkyFire_5xx.git into lfguild