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.

openair2/COMMON/mac_rlc_primitives.h

@@ -145,7 +145,7 @@ struct mac_tx_tb_management {
 struct mac_rx_tb_management {
   unsigned char             *data_ptr;
   tb_size_t                  tb_size;      // in bits
-  boolean_t                  valid_checksum;
+  bool                       valid_checksum;
   unsigned char              first_bit;    // 0 if data starts on byte boundary(b7), 1 if b6, 2 if b5, etc
 };