Add support to the ARM MC infrastructure to support mcr and friends. This requires supporting

the symbolic immediate names used for these instructions, fixing their pretty-printers, and
adding proper encoding information for them.

With this, we can properly pretty-print and encode assembly like:
	mrc p15, #0, r3, c13, c0, #3

Fixes <rdar://problem/8857858>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123404 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/EDEmitter.cpp

@@ -568,6 +568,8 @@ static int ARMFlagFromOpName(LiteralConstantEmitter *type,
   IMM("bf_inv_mask_imm");
   IMM("jtblock_operand");
   IMM("nohash_imm");
+  IMM("p_imm");
+  IMM("c_imm");
   IMM("cpinst_operand");
   IMM("setend_op");
   IMM("cps_opt");