low-level-can-generator: update to latest revision

low-level-can-generator: update to latest revision

Update SRCREV in low-level-can-generator recipe so that the toolchain
will have a version that matches the low-can binding, changes:

d9c40fd dd management of version and new decoder signature.
7869e2e Change enum type to flag and add iso tp protocol
93debbc Add generator for boolean fields
afa9e97 Add some modifications (space, new line, coma, float).
f61a6cb Add some options for J1939 support
0bb5744 Fix the default decoder using "states"
da429cc Add gitreview

Bug-AGL: SPEC-2976

Change-Id: I1dc3ece955548ced95ae24b9a382ce0ed3ad3b68
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>