mips: vct: move CONFIG_SYS_TEXT_BASE away from config.mk

We can delete board/micronas/vct/config.mk by moving the define of
CONFIG_SYS_TEXT_BASE to somewhere else.  Other MIPS boards are
still defining it in include/config/${BOARD}.h, so I am following
that way here.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
diff --git a/include/configs/vct.h b/include/configs/vct.h
index 872f2f0..ea6e3c0 100644
--- a/include/configs/vct.h
+++ b/include/configs/vct.h
@@ -32,6 +32,7 @@
 
 #define CONFIG_SKIP_LOWLEVEL_INIT	/* SDRAM is initialized by the bootstrap code */
 
+#define CONFIG_SYS_TEXT_BASE		0x87000000
 #define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_TEXT_BASE
 #define CONFIG_SYS_MONITOR_LEN		(256 << 10)
 #define CONFIG_SYS_MALLOC_LEN		(1 << 20)