mb/asrock/b75pro3-m: Fix S3 resume and hardware monitoring

On the ASRock B75 Pro3-M, resuming from S3 has always been broken;
see commit 928c6c6336 (mainboard/asrock: add ASRock B75 Pro3-M).
This was because 3VSBSW# was not enabled during S3, causing the
board to reboot instead of resume. This change enables 3VSBSW#
during S3, which leads to S3 resume working normally.

Another issue with this board was that hardware monitoring was not
working. The nct6775 Linux kernel module could not be loaded, due to
the device having a base I/O port of 0. This change also enables the
Super I/O properly, so that sensors-detect can find the sensor and
the kernel module can be used.

Change-Id: I6e504fe4b60da1d7b9830bea5029101bb8cebcb5
Signed-off-by: Kevin Keijzer <kevin@quietlife.nl>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73450
Reviewed-by: Fabian Groffen <grobian@gentoo.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/asrock/b75pro3-m/devicetree.cb

@@ -117,11 +117,15 @@ chip northbridge/intel/sandybridge
 					device pnp 2e.a on		# ACPI
 						irq 0xe0 = 0x01
 						irq 0xe3 = 0x14
+						irq 0xe4 = 0x10		# + enable 3VSBSW#
 						irq 0xe6 = 0x4c
 						irq 0xe9 = 0x02
-						irq 0xf0 = 0x20
+						irq 0xf0 = 0x20		# + pin 70 = 3VSBSW
+					end
+					device pnp 2e.b on		# HWM, front panel LED
+						irq 0x30 = 0xe1		# + Fan RPM sense pins
+						io  0x60 = 0x0290	# + HWM base address
 					end
-					device pnp 2e.b off	end		# HWM, front panel LED
 					device pnp 2e.d on end		# VID
 					device pnp 2e.e off end		# CIR WAKE-UP
 					device pnp 2e.f on end		# GPIO Push-Pull or Open-drain