asrock/b75pro3-m: use the ASPM blacklist driver

After commit 2188f57a (src/device: Update LTR configuration scheme)
coreboot will hang when reading resources on the ASMedia SATA
controller, although there is already an ASPM config override. So use
the ASPM blacklist driver instead of setting the ASPM override in the
devicetree.

Change-Id: I807d9bd4deef8c1528dff96c7646240ef75e1953
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Reviewed-on: https://review.coreboot.org/25819
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/asrock/b75pro3-m/Kconfig

@@ -28,6 +28,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select SOUTHBRIDGE_INTEL_C216
 	select USE_NATIVE_RAMINIT
 	select MAINBOARD_HAS_LIBGFXINIT
+	select DRIVERS_ASMEDIA_ASPM_BLACKLIST
 
 config HAVE_IFD_BIN
 	bool

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

@@ -106,7 +106,6 @@ chip northbridge/intel/sandybridge
 			device pci 1c.4 on # PCIe Port #5, ASMedia ASM1062 SATA Controller
 				subsystemid 0x1849 0x1e18
 			end
-			register "pcie_aspm_f4" = "0x80" # Disable ASPM for ASMedia SATA controller
 			device pci 1c.5 on # PCIe Port #6, Realtek PCIe GbE Controller
 				subsystemid 0x1849 0x1e1a
 			end