Revert "ls2k map 0x1fc00000 to 0x0f900000 and copy dtb to memory."

This reverts commit d2ee3792ae09fccac578b7d04bd69689ee659a65.

Targets/LS2K/ls2k/tgt_machdep.c

@@ -121,7 +121,6 @@ int vga_available = 0;
 #include "spinand_mt29f.h"
 #include "spinand_lld.h"
 #include "m25p80.h"
-#include "target/load_dtb.h"
 
 int tgt_i2cread(int type, unsigned char *addr, int addrlen, unsigned char reg,
 		unsigned char *buf, int count);
@@ -382,9 +381,7 @@ void initmips(unsigned long long  raw_memsz)
 #ifdef DEBUG_BY_EJTAG
 	*(volatile int *)0xbfe10080 = 0x001000f0;
 #else
-	memcpy(0xaf900000+DTB_OFFS, 0xbfc00000+DTB_OFFS, DTB_SIZE);
+	*(volatile int *)0xbfe10080 = 0x1fc000d2;
-	//*(volatile int *)0xbfe10080 = 0x1fc000d2;
-	*(volatile int *)0xbfe10080 = 0x0f9000f0;
 #endif
 #if NNAND
 #ifdef CONFIG_LS2K_NAND