mkconfig: change CONFIG_MK_ prefix into plain CONFIG_

When planning for more generalization and Makefile cleanup it became
obvious that the introduction of a separate CONFIG_MK_ name space for
config options that were set through scripting in the Makefile was
not a good idea.

Originally the idea was to provide a script-free approach to supply
configuration options - there was no real need for a separate name
space. But when we now convert the existing Makefile entries to make
use of this approach, it would mean that we have to touch a large
number of board config files and add #ifdef / #define sequences to
"convert" from the CONFIG_MK_ to the CONFIG_ name space.

It seems much cleaner to get rid of this somewhat arbitrary _MK
string now for the few boards that actually use it.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/board/bf527-ezkit/video.c b/board/bf527-ezkit/video.c
index 87e7658..ca5e9b0 100644
--- a/board/bf527-ezkit/video.c
+++ b/board/bf527-ezkit/video.c
@@ -24,7 +24,7 @@
 #define LCD_Y_RES		240	/* Vertical Resolution */
 #define DMA_BUS_SIZE		16
 
-#ifdef CONFIG_MK_BF527_EZKIT_REV_2_1 /* lq035q1 */
+#ifdef CONFIG_BF527_EZKIT_REV_2_1 /* lq035q1 */
 
 #if !defined(CONFIG_LQ035Q1_USE_RGB888_8_BIT_PPI) && \
     !defined(CONFIG_LQ035Q1_USE_RGB565_8_BIT_PPI)
@@ -125,7 +125,7 @@
 #define PPI_PACK_EN		0x80
 #define PPI_POLS_1		0x8000
 
-#ifdef CONFIG_MK_BF527_EZKIT_REV_2_1
+#ifdef CONFIG_BF527_EZKIT_REV_2_1
 static struct spi_slave *slave;
 static int lq035q1_control(unsigned char reg, unsigned short value)
 {
@@ -305,7 +305,7 @@
 int video_init(void *dst)
 {
 
-#ifdef CONFIG_MK_BF527_EZKIT_REV_2_1
+#ifdef CONFIG_BF527_EZKIT_REV_2_1
 	lq035q1_control(LQ035_SHUT_CTL, LQ035_ON);
 	lq035q1_control(LQ035_DRIVER_OUTPUT_CTL, (CONFIG_LQ035Q1_LCD_MODE &
 		LQ035_DRIVER_OUTPUT_MASK) | LQ035_DRIVER_OUTPUT_DEFAULT);
@@ -318,7 +318,7 @@
 	Init_PPI();
 	EnablePPI();
 
-#ifdef CONFIG_MK_BF527_EZKIT_REV_2_1
+#ifdef CONFIG_BF527_EZKIT_REV_2_1
 	EnableTIMER12();
 #else
 	/* Frame sync 2 (VS) needs to start at least one PPI clk earlier */
@@ -388,7 +388,7 @@
 	DisableDMA();
 	DisableTIMER0();
 	DisableTIMER1();
-#ifdef CONFIG_MK_BF527_EZKIT_REV_2_1
+#ifdef CONFIG_BF527_EZKIT_REV_2_1
 	lq035q1_control(LQ035_SHUT_CTL, LQ035_SHUT);
 #endif
 }