fix(printf): increase TESTCASE_OUTPUT_MAX_SIZE

The SMCCC_ARCH_WORKAROUND_2 test tftf_testcase_printf
encountered a string truncation error on multi clusters.
The value of 512 bytes was insufficient for a system with
16 cores, therefore, it has been increased to 1024 bytes
to address the issue.

Signed-off-by: Prasad Kummari <prasad.kummari@amd.com>
Change-Id: I15875c67137bf0491aa2da3fa1517ce789abacd8
diff --git a/tftf/framework/include/tftf.h b/tftf/framework/include/tftf.h
index 43f1e7e..b9bf705 100644
--- a/tftf/framework/include/tftf.h
+++ b/tftf/framework/include/tftf.h
@@ -15,7 +15,7 @@
 #define TFTF_WELCOME_STR	"Booting trusted firmware test framework"
 
 /* Maximum size of test output (in bytes) */
-#define TESTCASE_OUTPUT_MAX_SIZE	512
+#define TESTCASE_OUTPUT_MAX_SIZE	1024
 
 /* Size of build message used to differentiate different TFTF binaries */
 #define BUILD_MESSAGE_SIZE 		0x20