Add grok/write functions for new ppc core note sections

Add grok/write functions for new ppc core note sections

This patch adds functions for grokking and writing more register core
note sections (NT_PPC_TAR, NT_PPC_PPR, NT_PPC_DSCR, NT_PPC_EBB,
NT_PPC_PMU, NT_PPC_TM_CGPR, NT_PPC_TM_CFPR, NT_PPC_TM_CVMX,
NT_PPC_TM_CVSX, NT_PPC_TM_SPR, NT_PPC_TM_CTAR, NT_PPC_TM_CPPR,
NT_PPC_TM_CDSCR).

2018-07-16  Edjunior Barbosa Machado  <emachado@linux.vnet.ibm.com>

bfd/
	* elf-bfd.h (elfcore_write_ppc_tar): Add prototype.
	(elfcore_write_ppc_ppr): Likewise.
	(elfcore_write_ppc_dscr): Likewise.
	(elfcore_write_ppc_ebb): Likewise.
	(elfcore_write_ppc_pmu): Likewise.
	(elfcore_write_ppc_tm_cgpr): Likewise.
	(elfcore_write_ppc_tm_cfpr): Likewise.
	(elfcore_write_ppc_tm_cvmx): Likewise.
	(elfcore_write_ppc_tm_cvsx): Likewise.
	(elfcore_write_ppc_tm_spr): Likewise.
	(elfcore_write_ppc_tm_ctar): Likewise.
	(elfcore_write_ppc_tm_cppr): Likewise.
	(elfcore_write_ppc_tm_cdscr): Likewise.
	* elf.c (elfcore_write_ppc_tar): New function.
	(elfcore_write_ppc_ppr): Likewise.
	(elfcore_write_ppc_dscr): Likewise.
	(elfcore_write_ppc_ebb): Likewise.
	(elfcore_write_ppc_pmu): Likewise.
	(elfcore_write_ppc_tm_cgpr): Likewise.
	(elfcore_write_ppc_tm_cfpr): Likewise.
	(elfcore_write_ppc_tm_cvmx): Likewise.
	(elfcore_write_ppc_tm_cvsx): Likewise.
	(elfcore_write_ppc_tm_spr): Likewise.
	(elfcore_write_ppc_tm_ctar): Likewise.
	(elfcore_write_ppc_tm_cppr): Likewise.
	(elfcore_write_ppc_tm_cdscr): Likewise.
	(elfcore_write_register_note): Call them.
	(elfcore_grok_ppc_tar): New function.
	(elfcore_grok_ppc_ppr): Likewise.
	(elfcore_grok_ppc_dscr): Likewise.
	(elfcore_grok_ppc_ebb): Likewise.
	(elfcore_grok_ppc_pmu): Likewise.
	(elfcore_grok_ppc_tm_cgpr): Likewise.
	(elfcore_grok_ppc_tm_cfpr): Likewise.
	(elfcore_grok_ppc_tm_cvmx): Likewise.
	(elfcore_grok_ppc_tm_cvsx): Likewise.
	(elfcore_grok_ppc_tm_spr): Likewise.
	(elfcore_grok_ppc_tm_ctar): Likewise.
	(elfcore_grok_ppc_tm_cppr): Likewise.
	(elfcore_grok_ppc_tm_cdscr): Likewise.
	(elfcore_grok_note): Call them.