tools/liblockdep: Add include directory to allow tests to compile

All of the programs in the tests directory require the
liblockdep/mutex.h header in order to compile. Add the include directory
to the compiler options so that the tests can be built with the provided
Makefile.
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

tools/lib/lockdep/Makefile

@@ -112,7 +112,7 @@ export Q VERBOSE
 
 LIBLOCKDEP_VERSION = $(LL_VERSION).$(LL_PATCHLEVEL).$(LL_EXTRAVERSION)
 
-INCLUDES = -I. -I/usr/local/include -I./uinclude $(CONFIG_INCLUDES)
+INCLUDES = -I. -I/usr/local/include -I./uinclude -I./include $(CONFIG_INCLUDES)
 
 # Set compile option CFLAGS if not set elsewhere
 CFLAGS ?= -g -DCONFIG_LOCKDEP -DCONFIG_STACKTRACE -DCONFIG_PROVE_LOCKING -DBITS_PER_LONG=__WORDSIZE -DLIBLOCKDEP_VERSION='"$(LIBLOCKDEP_VERSION)"' -rdynamic -O0 -g