mptable: Refactor lintsrc generation

We copied pretty much the same code for generating mptable entries for
local interrupts (with some notable exceptions).
This change moves these lines into a generic function "mptable_lintsrc"
and makes use of it in many places.

The remaining uses of smp_write_lintsrc should be reviewed and replaced
by mptable_lintsrc calls where possible, and smp_write_lintsrc made static.

This patch was generated using Coccinelle:
  @@
  expression mc;
  expression isa_bus;
  @@
  -smp_write_lintsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x0, MP_APIC_ALL, 0x0);
  -smp_write_lintsrc(mc, mp_NMI, MP_IRQ_TRIGGER_DEFAULT|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x0, MP_APIC_ALL, 0x1);
  +mptable_lintsrc(mc, isa_bus);

  @@
  expression mc;
  expression isa_bus;
  @@
  -smp_write_lintsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, isa_bus, 0x0, MP_APIC_ALL, 0x0);
  -smp_write_lintsrc(mc, mp_NMI, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, isa_bus, 0x0, MP_APIC_ALL, 0x1);
  +mptable_lintsrc(mc, isa_bus);

  @m@
  identifier mc;
  expression BUS;
  @@
  -#define IO_LOCAL_INT(type, intr, apicid, pin) smp_write_lintsrc(mc, (type), MP_IRQ_TRIGGER_EDGE | MP_IRQ_POLARITY_HIGH, BUS, (intr), (apicid), (pin));
  ...
  -IO_LOCAL_INT(mp_ExtINT, 0x0, MP_APIC_ALL, 0x0);
  -IO_LOCAL_INT(mp_NMI, 0x0, MP_APIC_ALL, 0x1);
  +mptable_lintsrc(mc, BUS);

Change-Id: I97421f820cd039f5fd753cb0da5c1cca68819bb4
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/244
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
diff --git a/src/mainboard/asus/p2b-ds/mptable.c b/src/mainboard/asus/p2b-ds/mptable.c
index 5374066..88028b7 100644
--- a/src/mainboard/asus/p2b-ds/mptable.c
+++ b/src/mainboard/asus/p2b-ds/mptable.c
@@ -50,8 +50,7 @@
 	smp_write_intsrc(mc,  mp_INT,    MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW,  0x0,     0x18, ioapic_id,   0x13);
 
 	/* Local Ints:        Type       Trigger                Polarity              Bus ID   IRQ   APIC ID      PIN# */
-	smp_write_lintsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE |  MP_IRQ_POLARITY_HIGH, 0x1,     0x0,  MP_APIC_ALL, 0x0);
-	smp_write_lintsrc(mc, mp_NMI,    MP_IRQ_TRIGGER_EDGE |  MP_IRQ_POLARITY_HIGH, 0x1,     0x0,  MP_APIC_ALL, 0x1);
+	mptable_lintsrc(mc, 0x1);
 
 	/* Compute the checksums. */
 	mc->mpe_checksum =