Update unit test suite with new path to library and header files

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

tests/Makefile.am

@@ -23,5 +23,5 @@ check_PROGRAMS  = $(TESTS)
 # Ignore warnings about unused result, in e.g. write()
 CFLAGS         += -Wno-unused-result
 CPPFLAGS       += -D_GNU_SOURCE
-LDADD           = -L../ ../libite.la
+LDADD           = -L../src/ ../src/libite.la
 LDFLAGS        += -static

tests/check.h

@@ -6,8 +6,8 @@
 #include <string.h>
 #include <time.h>
 
-#include "../conio.h"
-#include "../lite.h"
+#include "../src/conio.h"
+#include "../src/lite.h"
 
 #define PRINT(args...) if (verbose) printf(args)