Fix 32 bit compilation issue. On 32 bit uint64_t is 'ull' so, use %llx to make it portable across 64 & 32 bit

Change-Id: I7c15c5eaae3fc4059cf11bf5e2ea58bacc6881f0
Merge "Fix 32 bit compilation issue. On 32 bit uint64_t is 'ull' so, use %llx to make it portable across 64 & 32 bit"