microblaze: Extend space for compiled-in FDT to 32kB

Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S
index ac0e1a5..109e9d8 100644
--- a/arch/microblaze/kernel/vmlinux.lds.S
+++ b/arch/microblaze/kernel/vmlinux.lds.S
@@ -44,7 +44,7 @@
 	__fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) {
 		_fdt_start = . ;		/* place for fdt blob */
 		*(__fdt_blob) ;			/* Any link-placed DTB */
-	        . = _fdt_start + 0x4000;	/* Pad up to 16kbyte */
+	        . = _fdt_start + 0x8000;	/* Pad up to 32kbyte */
 		_fdt_end = . ;
 	}