proc: Add missing includes into proc_parse.h
proc: Add missing includes into proc_parse.h

Since proc_parse.h declares functions which have
list_head as arguments, it should include list.h
and basic types.

Otherwise if included into the files without list support
the compilation might fail as
 |
 | In file included from cr-check.c:5:
 | ./include/proc_parse.h:83: error: expected declaration specifiers or ‘...’ before ‘bool’

Signed-off-by: Cyrill Gorcunov <7a1ea01eee6961eb1e372e3508c2670446d086f4@openvz.org>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@parallels.com>

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