build_abi.sh: Disable symbol trimming

Symbol trimming can get in the way when updating the KMI symbol list, as
by definition the build_kernel() function in build_abi.sh would only
ever be able to use the out-of-date list.

Unconditionally disable trimming in build_abi.sh to avoid any further
issues in this area.

Bug: 159728546
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I31e6bd76feeba16bd5987dca240b79a7a73c7112
1 file changed