smdk4412: fix invalid BOOTMAPSZ

This patch is to fix invalid value of CONFIG_SYS_BOOTMAPSZ in order to
allocate proper memory space, 8MB, for kernel boot.

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
smdk4412: Select FIMD bypass for LCD

The output of FIMD is connected to MIE/MDNIE as default on reset state,
therefore LCDBLK_CFG have to be configured to bypass FIMD of LBLK0.
It was configured by kernel in setup-fimd0.c, but nowhere to configure this
register in v3.10-rc1 since GPIO are configured by device tree and
setup-fimd0.c is removed.

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
smdk4412: Select the source clock of LCD0

This patch is to select the source clock of LCD0 to SCLKMPLL_USER_T instead
XusbXTI default.

Signed-off-by: Dongjin Kim <tobetter@gmail.com>