app: aboot: Add support for flashing modem via fastboot

Change-Id: I75c116f716e0ef4029c53f805c90d117d5a782ba
diff --git a/app/aboot/aboot.c b/app/aboot/aboot.c
index 824e5ab..fa41388 100755
--- a/app/aboot/aboot.c
+++ b/app/aboot/aboot.c
@@ -1948,7 +1948,8 @@
 	if (!strcmp(ptn->name, "system")
 		|| !strcmp(ptn->name, "userdata")
 		|| !strcmp(ptn->name, "persist")
-		|| !strcmp(ptn->name, "recoveryfs")) {
+		|| !strcmp(ptn->name, "recoveryfs")
+		|| !strcmp(ptn->name, "modem")) {
 			extra = 1;
 	} else
 		sz = ROUND_TO_PAGE(sz, page_mask);