[AIX] Build of libjli_static broken after change 8204572 (SetupJdkLibrary)

Change 8204572 forgot to add LIBJLI_SRC_DIRS as include path for the libjli_static build.

The fix is trivial:

diff -r 65e65d5905bc make/lib/CoreLibraries.gmk
--- a/make/lib/CoreLibraries.gmk Sun Jun 10 12:58:38 2018 +0300
+++ b/make/lib/CoreLibraries.gmk Mon Jun 11 15:34:05 2018 +0200
@@ -347,7 +347,8 @@
       EXCLUDE_FILES := $(LIBJLI_EXCLUDE_FILES), \
       EXTRA_FILES := $(LIBJLI_EXTRA_FILES), \
       OPTIMIZATION := HIGH, \
- CFLAGS := $(STATIC_LIBRARY_FLAGS) $(LIBJLI_CFLAGS_JDKLIB) $(LIBJLI_CFLAGS), \
+ CFLAGS := $(STATIC_LIBRARY_FLAGS) $(LIBJLI_CFLAGS_JDKLIB) $(LIBJLI_CFLAGS) \
+ $(addprefix -I, $(LIBJLI_SRC_DIRS)), \
       ARFLAGS := $(ARFLAGS), \
       OBJECT_DIR := $(SUPPORT_OUTPUTDIR)/native/$(MODULE)/libjli_static))