mb/google/{soraka,poppy,nautilus}: Set psys_pmax to 45W

Soraka, Poppy & Nautilus are designed to operate at max power of
45 Watt. Hence set psys_max to 45W.

BUG=b:66066340
BRANCH=None
TEST=Build and boot soraka.

Change-Id: If6f624733830b462329b5f539c20e2aea664143e
Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com>
Reviewed-on: https://review.coreboot.org/23757
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>

src/mainboard/google/poppy/variants/baseboard/devicetree.cb

@@ -253,6 +253,7 @@ chip soc/intel/skylake
 	}"
 
 	register "speed_shift_enable" = "1"
+	register "psys_pmax" = "45"
 	# PL2 override 15W for KBL-Y
 	register "tdp_pl2_override" = "15"
 	register "tcc_offset" = "10"     # TCC of 90C

src/mainboard/google/poppy/variants/nautilus/devicetree.cb

@@ -270,6 +270,7 @@ chip soc/intel/skylake
 	}"
 
 	register "speed_shift_enable" = "1"
+	register "psys_pmax" = "45"
 	# PL2 override 15W for KBL-Y
 	register "tdp_pl2_override" = "15"
 	register "tcc_offset" = "10"     # TCC of 90C

src/mainboard/google/poppy/variants/soraka/devicetree.cb

@@ -250,6 +250,7 @@ chip soc/intel/skylake
 	}"
 
 	register "speed_shift_enable" = "1"
+	register "psys_pmax" = "45"
 	# PL2 override 15W for KBL-Y
 	register "tdp_pl2_override" = "15"
 	register "tcc_offset" = "10"     # TCC of 90C