Hexagon: set the e_flags in user regset view for core dumps

Signed-off-by: Richard Kuo <[e-mail]>

arch/hexagon/kernel/ptrace.c

···
 	.e_machine = ELF_ARCH,
 	.ei_osabi = ELF_OSABI,
 	.regsets = hexagon_regsets,
+	.e_flags = ELF_CORE_EFLAGS,
 	.n = ARRAY_SIZE(hexagon_regsets)
 };