spl: Convert CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR to Kconfig

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
[trini: Fix sniper and kc1 migration]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/brppt1_nand_defconfig b/configs/brppt1_nand_defconfig
index 8e5325e..f8d5539 100644
--- a/configs/brppt1_nand_defconfig
+++ b/configs/brppt1_nand_defconfig
@@ -20,6 +20,8 @@
 # CONFIG_DISPLAY_CPUINFO is not set
 # CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_SPL=y
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x300
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_IMI is not set