mb/asrock/b75m-itx/devicetree.cb: Fix errors for PNP 2e.b and 2e.308

Currently, cbmem shows five errors when running `cbmem -c -B +ERROR`:

Resource didn't fit!!!   PNP: 002e.308 60 *  size: 0x8 limit: fff io
Resource didn't fit!!!   PNP: 002e.b 62 *  size: 0x2 limit: fff io
PNP: 002e.b 62 io size: 0x0000000002 not assigned in devicetree
PNP: 002e.b 70 irq size: 0x0000000001 not assigned in devicetree
PNP: 002e.308 60 io size: 0x0000000008 not assigned in devicetree

These changes resolve all the warnings by setting proper io and irq
values.

Change-Id: I5f669e2a1bd1338010a5d801a1d2a48ae11b3c89
Signed-off-by: Kevin Keijzer <kevin@quietlife.nl>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73815
Reviewed-by: Fabian Groffen <grobian@gentoo.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/mainboard/asrock/b75m-itx/devicetree.cb b/src/mainboard/asrock/b75m-itx/devicetree.cb
index 1b031d7..062a512 100644
--- a/src/mainboard/asrock/b75m-itx/devicetree.cb
+++ b/src/mainboard/asrock/b75m-itx/devicetree.cb
@@ -103,6 +103,8 @@
 					device pnp 2e.b on		# HWM, front panel LED
 						irq 0x30 = 0xe1		# + Fan RPM sense pins
 						io  0x60 = 0x0290	# + HWM base address
+						io  0x62 = 0x0000
+						irq 0x70 = 0
 					end
 					device pnp 2e.d on end		# VID
 					device pnp 2e.e off end		# CIR WAKE-UP
@@ -110,6 +112,9 @@
 					device pnp 2e.14 on end		# SVID
 					device pnp 2e.16 on end		# Deep Sleep
 					device pnp 2e.17 on end		# GPIOA
+					device pnp 2e.308 on		# GPIO base
+						io 0x60 = 0x0
+					end
 				end
 			end
 			device pci 1f.2 on  # SATA Controller 1