da850evm, da850_am18xxevm: convert to CONFIG_SPL_MAX_FOOTPRINT

This target wants to check full SPL size, BSS included.
Remove CONFIG_SPL_MAX_SIZE definition and instead define
CONFIG_SPL_MAX_FOOTPRINT.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>

board/davinci/da8xxevm/u-boot-spl-da850evm.lds

@@ -25,7 +25,7 @@
  */
 
 MEMORY { .sram : ORIGIN = CONFIG_SPL_TEXT_BASE,\
-		LENGTH = CONFIG_SPL_MAX_SIZE }
+		LENGTH = CONFIG_SPL_MAX_FOOTPRINT }
 
 OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
 OUTPUT_ARCH(arm)

include/configs/da850evm.h

@@ -399,7 +399,7 @@
 #define CONFIG_SPL_LDSCRIPT	"board/$(BOARDDIR)/u-boot-spl-da850evm.lds"
 #define CONFIG_SPL_STACK	0x8001ff00
 #define CONFIG_SPL_TEXT_BASE	0x80000000
-#define CONFIG_SPL_MAX_SIZE	32768
+#define CONFIG_SPL_MAX_FOOTPRINT	32768
 #endif
 
 /* Load U-Boot Image From MMC */