MIPS: Kconfig: Fix the arch-specific header path

The header path in the help text for the RUNTIME_DEBUG config option is
obsolete and needs to be updated to match the new location of
architecture-specific header files. While at it, fix the spelling mistake.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug
index 765c8e2..364ca89 100644
--- a/arch/mips/Kconfig.debug
+++ b/arch/mips/Kconfig.debug
@@ -48,7 +48,7 @@
 	help
 	  If you say Y here, some debugging macros will do run-time checking.
 	  If you say N here, those macros will mostly turn to no-ops.  See
-	  include/asm-mips/debug.h for debuging macros.
+	  arch/mips/include/asm/debug.h for debugging macros.
 	  If unsure, say N.
 
 endmenu