clkmgr: update CLKMGR_CXXFLAGS to include CLKMGR_PUB_DIR.

This update resolves issues related to missing header files during utest.

utest result:
$ make utest_clkmgr_client
[CC] clkmgr/utest/subscription.cpp
[CC] clkmgr/utest/client_state.cpp
[LD] clkmgr/utest/utest_client
[UTEST C++]
[==========] Running 2 tests from 2 test cases.
[----------] Global test environment set-up.
[----------] 1 test from SubscriptionTest
[ RUN      ] SubscriptionTest.MacroMajor
[       OK ] SubscriptionTest.MacroMajor (0 ms)
[----------] 1 test from SubscriptionTest (0 ms total)

[----------] 1 test from ClientStateTest
[ RUN      ] ClientStateTest.ApiTest
[       OK ] ClientStateTest.ApiTest (0 ms)
[----------] 1 test from ClientStateTest (0 ms total)

[----------] Global test environment tear-down
[==========] 2 tests from 2 test cases ran. (0 ms total)
[  PASSED  ] 2 tests.

Signed-off-by: Song Yoong Siang <[email protected]>

clkmgr/Makefile

@@ -23,7 +23,7 @@ CLKMGR_GEN_CPP=$(Q_GEN)$(M4) -I $(CLKMGR_COMMON_DIR) -D lang=cpp $< > $@
 CLKMGR_GEN_C=$(Q_GEN)$(M4) -I $(CLKMGR_COMMON_DIR) -D lang=c $< > $@
 
 CLKMGR_LDLIBS:=$(foreach lib,pthread rt rtpi,-l$(lib))
-CLKMGR_CXXFLAGS:=-I$(CLKMGR_DIR)
+CLKMGR_CXXFLAGS:=-I$(CLKMGR_DIR) -I$(CLKMGR_PUB_DIR)
 
 CLKMGR_COMMON_SRCS:=$(wildcard $(CLKMGR_COMMON_DIR)/*.cpp)
 CLKMGR_COMMON_LOBJS:=$(CLKMGR_COMMON_SRCS:.cpp=.lo)