perf annotate: Make capstone_init non-static so that it can be used during symbol disassemble

symbol__disassemble_capstone in util/disasm.c calls function
open_capstone_handle to open/init the capstone.

We already have a capstone_init function in "util/print_insn.c". But
capstone_init is defined as a static function in util/print_insn.c.

Change this and also add the function in print_insn.h

The open_capstone_handle checks the disassembler_style option from
annotation_options to decide whether to set CS_OPT_SYNTAX_ATT.

Add that logic in capstone_init also and by default set it to true.

Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Kajol Jain <kjain@linux.ibm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Akanksha J N <akanksha@linux.ibm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Disha Goel <disgoel@linux.vnet.ibm.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Segher Boessenkool <segher@kernel.crashing.org>
Link: https://lore.kernel.org/lkml/20240718084358.72242-13-atrajeev@linux.vnet.ibm.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>