configs: omap3/35_logic and omap3/35_logic_somlv: Reduce SPL size

Currently the DM37 and OMAP35 boards do not boot due to SPL
bring too large.

SPL doesn't need GPIO, I2C nor MMC sector access since it uses
a FAT file system.

This patch unifies all these boards to remove these unused features
from their defconfigs

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/configs/omap35_logic_defconfig b/configs/omap35_logic_defconfig
index c7b67f0..aabb438 100644
--- a/configs/omap35_logic_defconfig
+++ b/configs/omap35_logic_defconfig
@@ -21,7 +21,9 @@
 CONFIG_VERSION_VARIABLE=y
 CONFIG_SPL_SYS_MALLOC_SIMPLE=y
 CONFIG_SPL_SEPARATE_BSS=y
+# CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR is not set
 # CONFIG_SPL_FS_EXT4 is not set
+# CONFIG_SPL_I2C_SUPPORT is not set
 CONFIG_SPL_MTD_SUPPORT=y
 CONFIG_SPL_OS_BOOT=y
 CONFIG_SYS_PROMPT="OMAP Logic # "