os-power-mode: Fix Orin Nano low power mode index

which should be 1 (7W) instead of 2, which is not available
for this type of module.

Changelog-entry: os-power-mode: Fix Orin Nano low power mode index
Signed-off-by: Alexandru Costache <alexandru@balena.io>

layers/meta-balena-jetson/recipes-support/os-power-mode/os-power-mode/os-power-mode

@@ -91,7 +91,7 @@ else
             power_modes=(["low"]="1" ["mid"]="3" ["high"]="0")
             ;;
         jetson-orin-nano-devkit-nvme)
-            power_modes=(["low"]="2" ["mid"]="0" ["high"]="0")
+            power_modes=(["low"]="1" ["mid"]="0" ["high"]="0")
             ;;
         jetson-orin-nano-seeed-j3010)
             power_modes=(["low"]="2" ["mid"]="1" ["high"]="0")