microblaze: Rename kernel_mode to pt_mode in pt_regs

Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h
index d8e1543..4bed76d 100644
--- a/arch/microblaze/include/asm/processor.h
+++ b/arch/microblaze/include/asm/processor.h
@@ -62,7 +62,7 @@
 {
 	regs->pc = pc;
 	regs->r1 = usp;
-	regs->kernel_mode = 0;
+	regs->pt_mode = 0;
 }
 
 /* Free all resources held by a thread. */