This patch introduces ETMv4 (Embedded Trace Macrocell) system registers for the AArch...

This patch introduces ETMv4 (Embedded Trace Macrocell) system registers for the AArch64 architecture.

gas           * testsuite/gas/aarch64/etm-ro-invalid.d: New test.
              * testsuite/gas/aarch64/etm-ro-invalid.l: New test.
              * testsuite/gas/aarch64/etm-ro-invalid.s: New test.
              * testsuite/gas/aarch64/etm-ro.s: New test.
              * testsuite/gas/aarch64/etm-wo-invalid.d: New test.
              * testsuite/gas/aarch64/etm-wo-invalid.l: New test.
              * testsuite/gas/aarch64/etm-wo-invalid.s: New test.
              * testsuite/gas/aarch64/etm-wo.s: New test.
              * testsuite/gas/aarch64/etm.s: New test.
              * testsuite/gas/aarch64/sysreg.d: system register s2_1_c0_c3_0 disassembled
              now to trcstatr.

opcodes       * aarch64-opc.c: Added ETMv4 system registers TRCACATRn, TRCACVRn,
              TRCAUTHSTATUS, TRCAUXCTLR, TRCBBCTLR, TRCCCCTLR, TRCCIDCCTLR0, TRCCIDCCTLR1,
              TRCCIDCVRn, TRCCIDR0, TRCCIDR1, TRCCIDR2, TRCCIDR3, TRCCLAIMCLR, TRCCLAIMSET,
              TRCCNTCTLRn, TRCCNTRLDVRn, TRCCNTVRn, TRCCONFIGR, TRCDEVAFF0, TRCDEVAFF1,
              TRCDEVARCH, TRCDEVID, TRCDEVTYPE, TRCDVCMRn, TRCDVCVRn, TRCEVENTCTL0R,
              TRCEVENTCTL1R, TRCEXTINSELR, TRCIDR0, TRCIDR1, TRCIDR2, TRCIDR3, TRCIDR4,
              TRCIDR5, TRCIDR6, TRCIDR7, TRCIDR8, TRCIDR9, TRCIDR10, TRCIDR11, TRCIDR12,
              TRCIDR13, TRCIMSPEC0, TRCIMSPECn, TRCITCTRL, TRCLAR WOTRCLSR, TRCOSLAR
              WOTRCOSLSR, TRCPDCR, TRCPDSR, TRCPIDR0, TRCPIDR1, TRCPIDR2, TRCPIDR3,
              TRCPIDR4, TRCPIDR[5,6,7], TRCPRGCTLR, TRCP,CSELR, TRCQCTLR, TRCRSCTLRn,
              TRCSEQEVRn, TRCSEQRSTEVR, TRCSEQSTR, TRCSSCCRn, TRCSSCSRn, TRCSSPCICRn,
              TRCSTALLCTLR, TRCSTATR, TRCSYNCPR, TRCTRACEIDR,  TRCTSCTLR, TRCVDARCCTLR,
              TRCVDCTLR, TRCVDSACCTLR, TRCVICTLR, TRCVIIECTLR, TRCVIPCSSCTLR, TRCVISSCTLR,
              TRCVMIDCCTLR0, TRCVMIDCCTLR1 and TRCVMIDCVRn.