boot: various bugfixes (b/w logo displays now)

libraries/libstratosphere/source/pwm/driver/board/nintendo_nx/impl/pwm_impl_pwm_driver_api.cpp

@@ -25,8 +25,8 @@ namespace ams::pwm::driver::board::nintendo_nx::impl {
         constexpr inline size_t PwmRegistersSize = 0x100;
 
         constexpr const ChannelDefinition SupportedChannels[] = {
-            { pwm::DeviceCode_CpuFan,       0 },
-            { pwm::DeviceCode_LcdBacklight, 1 },
+            { pwm::DeviceCode_LcdBacklight, 0 },
+            { pwm::DeviceCode_CpuFan,       1 },
         };
 
     }

libraries/libstratosphere/source/pwm/driver/board/nintendo_nx/impl/pwm_pwm_driver_impl.cpp

@@ -141,7 +141,7 @@ namespace ams::pwm::driver::board::nintendo_nx::impl {
         AMS_ASSERT(device != nullptr);
 
         /* Validate the duty. */
-        R_UNLESS(0 <= duty && duty < MaxDuty, pwm::ResultInvalidArgument());
+        R_UNLESS(0 <= duty && duty <= MaxDuty, pwm::ResultInvalidArgument());
 
         /* Acquire exclusive access to the device registers. */
         std::scoped_lock lk(device->SafeCastTo<PwmDeviceImpl>());