MLK-21856 imx8: fix build warning in sci.h

./arch/arm/include/asm/arch/sci/sci.h: In function ‘sc_err_to_linux’:
./arch/arm/include/asm/arch/sci/sci.h:54:2: warning: implicit declaration
of function ‘debug’ [-Wimplicit-function-declaration]
  debug("%s %d %d\n", __func__, err, ret);
  ^~~~~

Signed-off-by: Ye Li <ye.li@nxp.com>
diff --git a/arch/arm/include/asm/arch-imx8/sci/sci.h b/arch/arm/include/asm/arch-imx8/sci/sci.h
index bfd534c..ac53686 100644
--- a/arch/arm/include/asm/arch-imx8/sci/sci.h
+++ b/arch/arm/include/asm/arch-imx8/sci/sci.h
@@ -6,6 +6,7 @@
 #ifndef _SC_SCI_H
 #define _SC_SCI_H
 
+#include <common.h>
 #include <asm/arch/sci/types.h>
 #include <asm/arch/sci/svc/misc/api.h>
 #include <asm/arch/sci/svc/pad/api.h>