fix(ff-a): default print verbosity

Changed to verbose print:
INFO:   Memory region 0x71fc000 - 0x7200000 allocated

SMMU id unspecified for a given peripheral:
WARNING: SMMUv3: Unexpected smmu-id:4294967295 specified in manifest

'FF-A RXTX Unmap API consecutive' test:
ERROR: No buffer pair registered on behalf of the caller.

Change-Id: Ibc20d7e7e0ab51f4343fbdf0914cf4aa2b8e71d4
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/src/load.c b/src/load.c
index d6825df..1e6031b 100644
--- a/src/load.c
+++ b/src/load.c
@@ -518,7 +518,7 @@
 					goto out;
 				}
 
-				dlog_info(
+				dlog_verbose(
 					"  Memory region %#x - %#x allocated\n",
 					region_begin, region_end);
 			} else {