package/boost: bump version to 1.77.0

package/boost: bump version to 1.77.0

* drop 0001-fenv.patch, issue [0] was marked fixed since boost 1.64 (commit [1])
* drop upstreamed patch 0002
* filesystem now depends on boost-atomic
* math broke the build without always lockfree atomic ints, disable for now. reported at [2].

[0] https://svn.boost.org/trac/boost/ticket/11756
[1] https://github.com/boostorg/test/commit/cb2a1c2488dc77b9baf1b05781208a9639dfcd69
[2] https://github.com/boostorg/math/issues/673

Signed-off-by: Michael Nosthoff <buildroot@heine.tech>
[Arnout: improve propagation of reverse dependencies:
 - also update comment of cc-tool;
 - add boost-filesystem to reason of gnuradio, libcpprestsdk, uhd;
 - move dependency to arch-deps of mongodb]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>