[MIPS] malta_int.c: make 4 variables static

The following variables defined in arch/mips/mips-boards/malta/malta_int.c
can become static: msc_irqmap[], msc_nr_irqs, msc_eicirqmap[], and
msc_nr_eicirqs. This patch makes them static.

Successfully build-tested using default configs for Malta, Atlas
and SEAD boards.

Runtime test successfully performed by booting the Malta 4Kc board
up to the shell prompt.

Signed-off-by: Dmitri Vorobiev <[e-mail]>
Signed-off-by: Ralf Baechle <[e-mail]>

arch/mips/mips-boards/malta/malta_int.c

···
 	.name = "CoreHi"
 };
 
-msc_irqmap_t __initdata msc_irqmap[] = {
+static msc_irqmap_t __initdata msc_irqmap[] = {
 	{MSC01C_INT_TMR,		MSC01_IRQ_EDGE, 0},
 	{MSC01C_INT_PCI,		MSC01_IRQ_LEVEL, 0},
 };
-int __initdata msc_nr_irqs = ARRAY_SIZE(msc_irqmap);
+static int __initdata msc_nr_irqs = ARRAY_SIZE(msc_irqmap);
 
-msc_irqmap_t __initdata msc_eicirqmap[] = {
+static msc_irqmap_t __initdata msc_eicirqmap[] = {
 	{MSC01E_INT_SW0,		MSC01_IRQ_LEVEL, 0},
 	{MSC01E_INT_SW1,		MSC01_IRQ_LEVEL, 0},
 	{MSC01E_INT_I8259A,		MSC01_IRQ_LEVEL, 0},
···
 	{MSC01E_INT_CPUCTR,		MSC01_IRQ_LEVEL, 0}
 };
 
-int __initdata msc_nr_eicirqs = ARRAY_SIZE(msc_eicirqmap);
+static int __initdata msc_nr_eicirqs = ARRAY_SIZE(msc_eicirqmap);
 
 /*
  * This GIC specific tabular array defines the association between External