sh: disable trapped I/O on SH7785LCR.

This board doesn't use trapped I/O for anything, so just kill off the
select. This was causing problems in the unhandled page fault die path.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh/boards/Kconfig

@@ -160,7 +160,6 @@ config SH_SH7785LCR
 	bool "SH7785LCR"
 	depends on CPU_SUBTYPE_SH7785
 	select SYS_SUPPORTS_PCI
-	select IO_TRAPPED if MMU
 
 config SH_SH7785LCR_29BIT_PHYSMAPS
 	bool "SH7785LCR 29bit physmaps"