Convert CONFIG_SPL_BSS_MAX_SIZE et al to Kconfig

This converts the following to Kconfig:
   CONFIG_SPL_BSS_MAX_SIZE
   CONFIG_SPL_MAX_FOOTPRINT

Note that the da850evm platforms were violating the "only use one" rule
here, and so now hard-code their BSS limit.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/socfpga_secu1_defconfig b/configs/socfpga_secu1_defconfig
index c55ed87..edd55d6 100644
--- a/configs/socfpga_secu1_defconfig
+++ b/configs/socfpga_secu1_defconfig
@@ -32,6 +32,7 @@
 CONFIG_CLOCKS=y
 CONFIG_MISC_INIT_R=y
 CONFIG_SPL_PAD_TO=0x10000
+CONFIG_SPL_NO_BSS_LIMIT=y
 CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK=y
 # CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR is not set
 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION=0x1