dma: keystone_nav: Fix linkram size

Fix Linkram size.
Signed-off-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NMugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com>

drivers/dma/keystone_nav.c

@@ -54,7 +54,7 @@ int _qm_init(struct qm_config *cfg)
 	qm_cfg = cfg;
 
 	qm_cfg->mngr_cfg->link_ram_base0	= qm_cfg->i_lram;
-	qm_cfg->mngr_cfg->link_ram_size0	= HDESC_NUM * 8;
+	qm_cfg->mngr_cfg->link_ram_size0	= HDESC_NUM * 8 - 1;
 	qm_cfg->mngr_cfg->link_ram_base1	= 0;
 	qm_cfg->mngr_cfg->link_ram_size1	= 0;
 	qm_cfg->mngr_cfg->link_ram_base2	= 0;