This application is built if LIBRTE_CMDLINE is enabled.
But there was no enabled source file if APP_TEST is disabled.
Let's consider that CONFIG_RTE_APP_TEST apply only on app/test.
Signed-off-by: Intel
#
# all sources are stored in SRCS-y
#
-SRCS-$(CONFIG_RTE_APP_TEST) += cmdline_test.c
-SRCS-$(CONFIG_RTE_APP_TEST) += commands.c
+SRCS-$(CONFIG_RTE_LIBRTE_CMDLINE) += cmdline_test.c
+SRCS-$(CONFIG_RTE_LIBRTE_CMDLINE) += commands.c
CFLAGS += -O3
CFLAGS += $(WERROR_FLAGS)