[MIPS] DSP and MDMX share the same config flag bit.

    
Clarify comment.
Signed-off-by: NThiemo Seufer <ths@networkno.de>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

include/asm-mips/mipsregs.h

@@ -291,7 +291,7 @@
 #define ST0_DL			(_ULCAST_(1) << 24)
 
 /*
- * Enable the MIPS DSP ASE
+ * Enable the MIPS MDMX and DSP ASEs
  */
 #define ST0_MX			0x01000000