arch/x86: Remove most C_ENV_BOOTBLOCK_SIZE limits

With top-aligned bootblock this is no longer globally needed.
The default maximum is now a generous 256 KiB with couple
platforms having lower limits of 32 KiB and 64 KiB.

Change-Id: Ib1aee44908c0dcbc17978d3ee53bd05a6200410c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47600
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/cpu/amd/agesa/Kconfig

@@ -37,10 +37,6 @@ config DCACHE_BSP_STACK_SIZE
 	hex
 	default 0x4000
 
-config C_ENV_BOOTBLOCK_SIZE
-	hex
-	default 0x8000
-
 config ENABLE_MRC_CACHE
 	bool "Use cached memory configuration"
 	default n

src/cpu/amd/pi/Kconfig

@@ -36,10 +36,6 @@ config DCACHE_BSP_STACK_SIZE
 	hex
 	default 0x4000
 
-config C_ENV_BOOTBLOCK_SIZE
-	hex
-	default 0x8000
-
 endif # CPU_AMD_PI
 
 source "src/cpu/amd/pi/00630F01/Kconfig"

src/cpu/intel/slot_1/Kconfig

@@ -32,7 +32,6 @@ config DCACHE_BSP_STACK_SIZE
 
 config C_ENV_BOOTBLOCK_SIZE
 	hex
-	default 0x4000 if BOOTBLOCK_CONSOLE
-	default 0x2000
+	default 0x10000
 
 endif

src/cpu/intel/socket_441/Kconfig

@@ -10,10 +10,6 @@ config SOCKET_SPECIFIC_OPTIONS # dummy
 	select SSE
 	select SETUP_XIP_CACHE
 
-config C_ENV_BOOTBLOCK_SIZE
-	hex
-	default 0x8000
-
 config DCACHE_RAM_BASE
 	hex
 	default 0xfefc0000

src/cpu/intel/socket_m/Kconfig

@@ -22,8 +22,4 @@ config DCACHE_BSP_STACK_SIZE
 	hex
 	default 0x2000
 
-config C_ENV_BOOTBLOCK_SIZE
-	hex
-	default 0x8000
-
 endif