AGESA: Switch to MMCONF_SUPPORT_DEFAULT

Vendorcode always does PCI MMCONF access once it is
enabled via MSR.

In coreboot proper, we don't give opportunity to make
pci_read/write calls before PCI MMCONF is enabled via MSR.
This happens early in romstage amd_initmmio() for all cores.

Change-Id: If31bc0a67b480bcc1d955632f413f5cdeec51a54
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17533
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/cpu/amd/agesa/family10/Kconfig

@@ -17,6 +17,7 @@ config CPU_AMD_AGESA_FAMILY10
 	bool
 	select CPU_AMD_MODEL_10XXX
 	select PCI_IO_CFG_EXT
+	select MMCONF_SUPPORT_DEFAULT
 	select X86_AMD_FIXED_MTRRS
 
 if CPU_AMD_AGESA_FAMILY10

src/cpu/amd/agesa/family12/Kconfig

@@ -16,6 +16,7 @@
 config CPU_AMD_AGESA_FAMILY12
 	bool
 	select PCI_IO_CFG_EXT
+	select MMCONF_SUPPORT_DEFAULT
 	select X86_AMD_FIXED_MTRRS
 
 if CPU_AMD_AGESA_FAMILY12

src/cpu/amd/agesa/family14/Kconfig

@@ -16,6 +16,7 @@
 config CPU_AMD_AGESA_FAMILY14
 	bool
 	select PCI_IO_CFG_EXT
+	select MMCONF_SUPPORT_DEFAULT
 	select X86_AMD_FIXED_MTRRS
 
 if CPU_AMD_AGESA_FAMILY14

src/cpu/amd/agesa/family15/Kconfig

@@ -16,6 +16,7 @@
 config CPU_AMD_AGESA_FAMILY15
 	bool
 	select PCI_IO_CFG_EXT
+	select MMCONF_SUPPORT_DEFAULT
 	select X86_AMD_FIXED_MTRRS
 
 if CPU_AMD_AGESA_FAMILY15

src/cpu/amd/agesa/family15rl/Kconfig

@@ -17,6 +17,7 @@
 config CPU_AMD_AGESA_FAMILY15_RL
 	bool
 	select PCI_IO_CFG_EXT
+	select MMCONF_SUPPORT_DEFAULT
 	select X86_AMD_FIXED_MTRRS
 
 if CPU_AMD_AGESA_FAMILY15_RL

src/cpu/amd/agesa/family15tn/Kconfig

@@ -16,6 +16,7 @@
 config CPU_AMD_AGESA_FAMILY15_TN
 	bool
 	select PCI_IO_CFG_EXT
+	select MMCONF_SUPPORT_DEFAULT
 	select X86_AMD_FIXED_MTRRS
 
 if CPU_AMD_AGESA_FAMILY15_TN

src/cpu/amd/agesa/family16kb/Kconfig

@@ -16,6 +16,7 @@
 config CPU_AMD_AGESA_FAMILY16_KB
 	bool
 	select PCI_IO_CFG_EXT
+	select MMCONF_SUPPORT_DEFAULT
 	select X86_AMD_FIXED_MTRRS
 
 if CPU_AMD_AGESA_FAMILY16_KB