Use (std) bool instead of custom bool types

OAI is riddled with boolean_t, FALSE, TRUE, etc. This makes no sense, as
there is a standard bool type, and could lead to nasty bugs if a
definition of a bool is non-standard (0 == false, true == !false). This
commit removes all non-standard bools in the whole project.

openair3/NGAP/ngap_common.h

@@ -102,13 +102,6 @@
 # error "You are compiling ngap with the wrong version of ASN1C"
 #endif
 
-#ifndef FALSE
-# define FALSE (0)
-#endif
-#ifndef TRUE
-# define TRUE  (!FALSE)
-#endif
-
 #define NGAP_UE_ID_FMT  "0x%06"PRIX32
 
 extern int asn_debug;