GCC4.6: Squash GTREADREG related errors

interrupts.c: In function 'interrupt_init_cpu':
interrupts.c:37: warning: implicit declaration of function 'GTREGREAD'
interrupts.c:37: error: 'LOW_INTERRUPT_CAUSE_REGISTER' undeclared (first use in
this function)
interrupts.c:37: error: (Each undeclared identifier is reported only once
interrupts.c:37: error: for each function it appears in.)
interrupts.c:37: error: 'HIGH_INTERRUPT_CAUSE_REGISTER' undeclared (first use in
this function)
interrupts.c:40: error: 'ETHERNET0_INTERRUPT_CAUSE_REGISTER' undeclared (first
use in this function)
interrupts.c:40: error: 'ETHERNET1_INTERRUPT_CAUSE_REGISTER' undeclared (first
use in this function)
interrupts.c:40: error: 'ETHERNET2_INTERRUPT_CAUSE_REGISTER' undeclared (first
use in this function)
interrupts.c:44: error: 'ETHERNET0_INTERRUPT_MASK_REGISTER' undeclared (first
use in this function)
interrupts.c:44: error: 'ETHERNET1_INTERRUPT_MASK_REGISTER' undeclared (first
use in this function)
interrupts.c:44: error: 'ETHERNET2_INTERRUPT_MASK_REGISTER' undeclared (first
use in this function)

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Mike Frysinger <vapier@gentoo.org>
diff --git a/include/configs/p3mx.h b/include/configs/p3mx.h
index 94a6992..e44009e8 100644
--- a/include/configs/p3mx.h
+++ b/include/configs/p3mx.h
@@ -447,4 +447,8 @@
 
 #define L2_ENABLE	(L2_INIT | L2CR_L2E)
 
+#ifndef __ASSEMBLY__
+#include <../board/Marvell/include/core.h>
+#endif
+
 #endif	/* __CONFIG_H */