AGESA: Disable boards from build

As per the 4.11 release requirement, C_ENVIRONMENT_BOOTBLOCK=y
is a mandatory feature, which most AGESA and binaryPI boards lack.
Disable such platforms from the build for the time being.

The Kconfig symbol has been flipped, ROMCC_BOOTBLOCK=n is the
same mandated feature as C_ENVIRONMENT_BOOTBLOCK=y.

If a platform does not reach ROMCC_BOOTBLOCK=n within a
reasonable timeframe both the mainboard and the respective
unused platform support code will get removed.

Change-Id: I7fceb0370f7f4f5f52080277c5d21615d3ab3454
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37355
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/mainboard/biostar/Kconfig

@@ -20,6 +20,9 @@ choice
 
 source "src/mainboard/biostar/*/Kconfig.name"
 
+config BIOSTAR_BOARDS_DISABLED
+	bool "Boards from vendor are disabled"
+
 endchoice
 
 source "src/mainboard/biostar/*/Kconfig"

src/mainboard/biostar/a68n_5200/Kconfig

@@ -15,11 +15,14 @@
 # GNU General Public License for more details.
 #
 
+config BOARD_BIOSTAR_A68N5200
+	def_bool n
+
 if BOARD_BIOSTAR_A68N5200
 
 config BOARD_SPECIFIC_OPTIONS
 	def_bool y
-	select ROMCC_BOOTBLOCK
+	#select ROMCC_BOOTBLOCK
 	select CPU_AMD_AGESA_FAMILY16_KB
 	select NORTHBRIDGE_AMD_AGESA_FAMILY16_KB
 	select SOUTHBRIDGE_AMD_AGESA_YANGTZE

src/mainboard/biostar/a68n_5200/Kconfig.name

@@ -1,2 +1,2 @@
-config BOARD_BIOSTAR_A68N5200
-	bool "A68N-5200"
+#config BOARD_BIOSTAR_A68N5200
+#	bool"A68N-5200"

src/mainboard/biostar/am1ml/Kconfig

@@ -14,12 +14,15 @@
 # GNU General Public License for more details.
 #
 
+config BOARD_BIOSTAR_AM1ML
+	def_bool n
+
 if BOARD_BIOSTAR_AM1ML
 
 config BOARD_SPECIFIC_OPTIONS
 	def_bool y
 	select BOARD_ROMSIZE_KB_4096
-	select ROMCC_BOOTBLOCK
+	#select ROMCC_BOOTBLOCK
 	select CPU_AMD_AGESA_FAMILY16_KB
 	select FORCE_AM1_SOCKET_SUPPORT
 	select GFXUMA

src/mainboard/biostar/am1ml/Kconfig.name

@@ -1,2 +1,2 @@
-config BOARD_BIOSTAR_AM1ML
-	bool "AM1ML"
+#config BOARD_BIOSTAR_AM1ML
+#	bool"AM1ML"