[MIPS] Rewrite all the assembler interrupt handlers to C.

Saves like 1,600 lines of code, is way easier to debug, compilers
frequently do a better job than the cut and paste type of handlers many
boards had.  And finally having all the stuff done in a single place
also means alot of bug potencial for the MT ASE is gone.

The only surviving handler in assembler is the DECstation one; I hope
Maciej will rewrite it.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/sgi-ip22/Makefile b/arch/mips/sgi-ip22/Makefile
index eb0820f..6aa4c0c 100644
--- a/arch/mips/sgi-ip22/Makefile
+++ b/arch/mips/sgi-ip22/Makefile
@@ -3,7 +3,7 @@
 # under Linux.
 #
 
-obj-y	+= ip22-mc.o ip22-hpc.o ip22-int.o ip22-irq.o ip22-berr.o \
+obj-y	+= ip22-mc.o ip22-hpc.o ip22-int.o ip22-berr.o \
 	   ip22-time.o ip22-nvram.o ip22-reset.o ip22-setup.o
 
 obj-$(CONFIG_EISA)	+= ip22-eisa.o