recipes-multimedia: 4a-hal-generic: update SRCREV

recipes-multimedia: 4a-hal-generic: update SRCREV

* f5ebbeb Add halmap controls events generation for all hal
* 40a55bf Add streams events generation for each hal
* 24b80b0 Rework calls to mixer streams
* 88ff9d8 Add 'halmap' controls in hal 'info' verb response
* 41a1948 Add setting values of a ALSA control using a +/-
* 2c9738f Send back control previous and current values
* 5b607a1 Send back control current values if no request json
* 6426836 Add a function to get values of an alsa control
* 5283492 Improve ALSA controls volume values conversion
* d4d1991 Update syntax of a request of an halmap verb
* e305728 Typo fix in halmap call response
* 0318b2b Correct halmap calls request json syntax
* 65e5ce8 Move hal configuration files into 4a-hal-configs repository
* 4d6096b plugins: hal-bt: use transport events for streaming enablement

Change-Id: I72252e376139acec94cb16ed4af237465258384c
Signed-off-by: Stephane Desneux <stephane.desneux@iot.bzh>