Reduced power production for a MV hydro

The LV hydro is easy to make giving lot of power. The New hydro MV will put a tier system to it; thereby giving more incentive to player to pursue MV hydro plus a little survival aspect. This is a result of [Detailed discussion which is here](minetest-mods#411). Thanks to VanessaE for a good talk and support and enthusiasm to make one :) This will now produce around 175 EU (in between 150-200, so basically average). The MV hydro will give 10x more power than this one. :)

technic/machines/LV/water_mill.lua

@@ -1,6 +1,6 @@
 -- A water mill produces LV EUs by exploiting flowing water across it
--- It is a LV EU supplyer and fairly low yield (max 120EUs)
--- It is a little under half as good as the thermal generator.
+-- It is a LV EU supplyer and fairly low yield (max 175EUs)
+-- It is a little over half as good as the thermal generator.
 
 local S = technic.getter
 
@@ -32,8 +32,7 @@ local run = function(pos, node)
 	local lava_nodes       = 0
 	local production_level = 0
 	local eu_supply        = 0
-	local max_output       = 35 * 45 -- four param2's at 15 makes 60, cap it lower for "overload protection"
-									 -- (plus we want the gen to report 100% if three sides have full flow)
+	local max_output       = 35 * 5 -- keeping it around 175 mid value little more than previous 150 :)
 
 	local positions = {
 		{x=pos.x+1, y=pos.y, z=pos.z},