unicore32: change zImage physical address, though it's PIC codes

U-boot will load the kernel image to 48M physical memory address.
The patch changes it to the correct address, though it's PIC codes.

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/arch/unicore32/boot/compressed/Makefile b/arch/unicore32/boot/compressed/Makefile
index 9537342..b0954a2 100644
--- a/arch/unicore32/boot/compressed/Makefile
+++ b/arch/unicore32/boot/compressed/Makefile
@@ -59,7 +59,7 @@
 # We now have a PIC decompressor implementation.  Decompressors running
 # from RAM should not define ZTEXTADDR.  Decompressors running directly
 # from ROM or Flash must define ZTEXTADDR (preferably via the config)
-ZTEXTADDR	:= 0
+ZTEXTADDR	:= 0x03000000
 ZBSSADDR	:= ALIGN(4)
 
 SEDFLAGS_lds	= s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/