qcacmn: Fix compilation issue on arch32 by gcc 9.3

This change fixed compilation error about implicit-fallthrough and
pointer to in cast.

Change-Id: Iea2c25d97d8a039ed0f8083078427a8f8de70cd1
CRs-Fixed: 2814658

dp/wifi3.0/dp_main.c

@@ -10648,6 +10648,7 @@ static uint32_t dp_get_cfg(struct cdp_soc_t *soc, enum cdp_dp_cfg cfg)
 		break;
 	case cfg_dp_wow_check_rx_pending:
 		value = dpsoc->wlan_cfg_ctx->wow_check_rx_pending_enable;
+		break;
 	default:
 		value =  0;
 	}

hal/wifi3.0/hal_srng.c

@@ -220,7 +220,7 @@ QDF_STATUS hal_construct_shadow_regs(void *hal_soc)
 			shadow_config_index;
 		hal->list_shadow_reg_config[i].va =
 			SHADOW_REGISTER(shadow_config_index) +
-			(uint64_t)hal->dev_base_addr;
+			(uintptr_t)hal->dev_base_addr;
 		hal_debug("target_reg %x, shadow register 0x%x shadow_index 0x%x",
 			  hal->shadow_config[shadow_config_index].addr,
 			  SHADOW_REGISTER(shadow_config_index),

umac/scan/core/src/wlan_scan_manager_6ghz.c

@@ -271,7 +271,7 @@ scm_copy_valid_channels(struct wlan_objmgr_psoc *psoc,
 		 * Consider the complete channel list if firmware supports
 		 * RNR_ONLY scan flag/feature.
 		 */
-
+		/* fallthrough */
 	default:
 		/*
 		 * Allow all 2g/5g/6g channels. Below are also covered in this