lint/checkpatch: ignore MULTILINE_DEREFERENCE
This linting rule gives false positives, e.g. for this snippet:
static int abis_nm_rcvmsg_fom(struct e1inp_sign_link *sign_link,
uint8_t *l3_msg, unsigned l3_msg_len)
It complains with:
src/osmo-bsc/bts_nokia_site.c:1785: WARNING:MULTILINE_DEREFERENCE: Avoid multiple line dereference - prefer 'run.static'
Related: https://gerrit.osmocom.org/c/osmo-bsc/+/42712/comment/fd3a38ef_a59f616f/
Change-Id: If2a1972fe333f51d534a924fd5ac1c1f7eb65b01
