[MIPS] IP27: Allow SMP ;-) Another changeset messed up by patch.

When lmo commit 4ef893e0515e8bf336dfbd200884f244869fbb43 was merged to
kernel.org as e73ea273ef87a04ff59fc368fa33333dca275dde patch happily
applied the IP27 segment to IP22.  f63f36c18b11e166d0f362ac04dbcd7e6ea23f9e
did fix the effects partially - and with a wrong log message.  Now fixed
for real (tm).

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/Kconfig

@@ -559,6 +559,7 @@ config SGI_IP27
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_NUMA
+	select SYS_SUPPORTS_SMP
 	help
 	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
 	  workstations.  To compile a Linux kernel that runs on these, say Y