PX4-NuttX/nuttx branch test: px4-master_auto_rebase

NuttX:
 - https://github.com/PX4-NuttX/nuttx/tree/px4-master_auto_rebase
 - PX4/NuttX@ba60197

Changes from PX4-NuttX/nuttx (PX4/NuttX@0ac630e) in current PX4/master (aee05d0)
PX4/NuttX@0ac630e...ba60197

ba60197 (HEAD, origin/px4-master_auto_rebase) [PX4: WIP] Fix transmission status handling in the serial interrupt
62b6ab3 [PX4: REJECTED] cstdint fix
9d22f37 [PX4: REJECTED] add math.h
f39d290 [PX4: WIP] Jenkinsfile
8d73337 (origin/master) Trivial coding standard fix.
084a90b Merged in MarcoKrahl/nuttx/ltdc (pull request #654)
1f4a1ea libs/libc/netdb:  Add getaddrinfo() and friends.
5c8a975  libs/libc/net:  Add inet_aton()
a94e328 syslog:  Enable is partial, crippled version of syslog_flush();  arch/:  Call syslog_flush() from assertion handling logic.
2d50a28 configs/sabre-6quad:  Update README/refresh a configuration.

Apps:
 - https://github.com/PX4-NuttX/apps/tree/px4-master_auto_rebase
 - PX4/NuttX-apps@f7378e8

Changes from PX4-NuttX/apps (PX4/NuttX-apps@7e2f17d) in current PX4/master (aee05d0)
PX4/NuttX-apps@7e2f17d...f7378e8

f7378e8 (HEAD -> px4-master_auto_rebase, origin/px4-master_auto_rebase) [REJECTED] add-var-expansion-in-nsh-parse.patch
301fe28 Merge branch 'master' of bitbucket.org:nuttx/apps
67e6e33 (origin/master) Merged in masayuki2009/nuttx.apps/taskset_command (pull request #140)
c36a5c1 apps/examples/ostest:  Signal handling tests should use the same configurable stack size as used in other tests, not PTHREAD_STACK_DEFAULT.
0c867bc Merged in MarcoKrahl/apps/ltdc (pull request #139)
c6697c1 Merged in bkueng/nuttx-apps (pull request #138)
0123480 Merged in masayuki2009/nuttx.apps/i2sloop_test (pull request #137)
1b4d17d apps/netutils/ftpc:  Fixed handling of url-encoded strings
9d4b9e8 Minor fixes to ChangeLog
a64d93c Update ChangeLog in preparation for the 7.26 release.