samsung: common: Add file for common functions, draw_logo() cleanup.

Changes:

new file:
- board/samsung/common/misc.c
  depends on: CONFIG_MISC_COMMON
- move draw_logo() to misc.c

configs: trats, trats2, universal:
- enable CONFIG_MISC_COMMON,
- enable CONFIG_MISC_INIT_R,
- add misc_init_r() and call draw_logo() in it.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/board/samsung/common/Makefile b/board/samsung/common/Makefile
index 22bd6b1..7d2bb8c 100644
--- a/board/samsung/common/Makefile
+++ b/board/samsung/common/Makefile
@@ -8,6 +8,7 @@
 obj-$(CONFIG_SOFT_I2C_MULTI_BUS) += multi_i2c.o
 obj-$(CONFIG_THOR_FUNCTION) += thor.o
 obj-$(CONFIG_CMD_USB_MASS_STORAGE) += ums.o
+obj-$(CONFIG_MISC_COMMON) += misc.o
 
 ifndef CONFIG_SPL_BUILD
 obj-$(CONFIG_BOARD_COMMON)	+= board.o