package/umtprd: add patch to fix output_dir make dependency

Object file targets need to depend on the output_dir target.

Upstream commit:
https://github.com/viveris/uMTP-Responder/commit/d84216a678edaca81c0899318231cdcca2100d38

Fixes:
- http://autobuild.buildroot.net/results/c7ce975d398190fc191ccc03813f8ec0b3464c7d/
- http://autobuild.buildroot.net/results/0331fb9cf2748b16440ef830d09452a9812f5217/
- http://autobuild.buildroot.net/results/a1b1de9e2f764ce22f23d8a8ea88f7ddcf2969a9/
- http://autobuild.buildroot.net/results/7c7dbe03d769dc5f155fc14102f6591855605640/
- http://autobuild.buildroot.net/results/6cd90b7877520669d9ab9c9fadc9fa36912963b4/
- http://autobuild.buildroot.net/results/186689fc9637ae1a8330d7e19057cd1b3c9a841c/



Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>