Merge branch 'connector-proc_filter-test-fixes'

Shuah Khan says:

====================
Connector/proc_filter test fixes

The first patch fixes the LKFT reported compile error, second
one adds .gitignore.
====================

Applying the first 2 patches, third one resent separately.

Link: https://lore.kernel.org/r/cover.1690564372.git.skhan@linuxfoundation.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

tools/testing/selftests/connector/.gitignore

+proc_filter

tools/testing/selftests/connector/Makefile

 # SPDX-License-Identifier: GPL-2.0
-CFLAGS += -Wall
+CFLAGS += -Wall $(KHDR_INCLUDES)
 
 TEST_GEN_PROGS = proc_filter