[PATCH] [mips][microMIPSr6] Implement CLO and CLZ instructions

[Zoran Jovanovic]

LGTM with a nit.


================
Comment at: test/MC/Disassembler/Mips/micromips32r6.txt:18
@@ -17,1 +17,3 @@
 
+# CHECK: clo $11, $5
+0x01 0x65 0x4b 0x3c
----------------
Nit: Please use the single-line style.

http://reviews.llvm.org/D8553

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