uhd: work on moving binaries to lib/uhd
xcvr2450: created xcvr2450 r21 that uses external divider
Fix syntax in XCVR driver.
wbx: expand freq range low for r4
Merge branch 'xcvr2450_r21' into maint34
Merge branch 'maint34' into maint
Merge branch 'maint'
docs: UHD/USRP rephrasing
utils: usrp_n2xx_simple_net_burner accepts empty response to reset USRP
Merge branch 'maint'
Modify query_gpsdo_sensors to wait long enough to latch a PPS in before checking it.
Merge branch 'maint'
udp: fix ENOBUFS with send/retry for udp socket
Merge branch 'maint'
uhd: changed version number to 3.4.5
Merge branch 'maint34' into maint

Conflicts:
	host/cmake/Modules/UHDVersion.cmake
uhd: changed version number to 3.5.1
Merge branch 'maint'
Merge branch 'fhs_work'
Merge branch 'next'