qcacld-3.0: Remove QCA_WIFI_3_0_EMU flag from Kbuild

QCA_WIFI_3_0_EMU flag is introduced for IHelium emulation
platform, where wait/error timeouts are kept for larger values.
Remove this flag for production target.
Increase tx completion drain delay to 1sec from 500ms to avoid
unwanted suspend abort.

Change-Id: Ie0633b3a2bbc9e2237039311af7417952961aada
CRs-Fixed: 2047750

core/dp/txrx/ol_txrx.c

@@ -3621,7 +3621,7 @@ static QDF_STATUS ol_txrx_wait_for_pending_tx(int timeout)
 }
 
 #ifndef QCA_WIFI_3_0_EMU
-#define SUSPEND_DRAIN_WAIT 500
+#define SUSPEND_DRAIN_WAIT 1000
 #else
 #define SUSPEND_DRAIN_WAIT 3000
 #endif