MIPS: uasm: Add INS and EXT instructions.

These are MIPS32R2 instructions for merging and extracting bit fields
from one GPR into another.

Signed-off-by: Steven J. Hill <sjhill@mips.com>

arch/mips/include/asm/uasm.h

@@ -90,6 +90,8 @@ Ip_u2u1u3(_dsrl);
 Ip_u2u1u3(_dsrl32);
 Ip_u3u1u2(_dsubu);
 Ip_0(_eret);
+Ip_u2u1msbu3(_ext);
+Ip_u2u1msbu3(_ins);
 Ip_u1(_j);
 Ip_u1(_jal);
 Ip_u1(_jr);