tests: Move EDID test header to include/tests/lib

Move header to path with all other test headers to make include paths
unambigous.

Change-Id: Ie2dbb055df658272424df95f58d84caaeba3fc8f
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60969
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

tests/include/tests/lib/edid.h

@@ -1,5 +1,8 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#ifndef TESTS_LIB_EDID_H
+#define TESTS_LIB_EDID_H
+
 #include <stdlib.h>
 #include <commonlib/bsd/helpers.h>
 
@@ -195,3 +198,5 @@ _Static_assert(sizeof(struct edid_raw) == 128,
 					EDID_COLOR_W_X92, \
 					EDID_COLOR_W_Y92, \
 				}
+
+#endif /* TESTS_LIB_EDID_H */

tests/lib/edid-test.c

@@ -5,7 +5,7 @@
 #include <edid.h>
 #include <assert.h>
 #include <string.h>
-#include <lib/edid-test.h>
+#include <tests/lib/edid.h>
 
 struct test_state {
 	int data_size;