package/triggerhappy: bump to latest commit to fix runtime issue

Bump to latest commit to fix runtime issue with the Linux Kernel headers 4.4:
  Starting thd: Unable to parse trigger line: [..]

With version 4.4 of the Linux Kernel the input event codes are not defined in
'linux/input.h' anymore, but in a seperate header file
'linux/input-event-codes.h' leaving triggerhappys evtable_*.h header files
empty with no event codes defined.

This issue is fixed upstream by commit 7e5abc69f215678e93a6b999524981c8b40bdcd9
which also makes overwriting of the 'LINUX_INPUT_H' definition obsolet.

Tested with an internal Buildroot toolchain with Linux Kernel headers 4.4 and
an external Linaro ARM 2015.08 toolchain with Linux Kernel headers 4.0.

[Peter: add hash file]
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>