Bluetooth: btqca: Moved extracting rom version info to common place

Moved extracting rom version info to common place as this code is
common in all if else ladder in qca_uart_setup.
Signed-off-by: Venkata Lakshmi Narayana Gubba <gubbaven@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

drivers/bluetooth/btqca.c

@@ -546,24 +546,20 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
 
 	config.user_baud_rate = baudrate;
 
+	/* Firmware files to download are based on ROM version.
+	 * ROM version is derived from last two bytes of soc_ver.
+	 */
+	rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f);
+
 	/* Download rampatch file */
 	config.type = TLV_TYPE_PATCH;
 	if (qca_is_wcn399x(soc_type)) {
-		/* Firmware files to download are based on ROM version.
-		 * ROM version is derived from last two bytes of soc_ver.
-		 */
-		rom_ver = ((soc_ver & 0x00000f00) >> 0x04) |
-			    (soc_ver & 0x0000000f);
 		snprintf(config.fwname, sizeof(config.fwname),
 			 "qca/crbtfw%02x.tlv", rom_ver);
 	} else if (soc_type == QCA_QCA6390) {
-		rom_ver = ((soc_ver & 0x00000f00) >> 0x04) |
-			    (soc_ver & 0x0000000f);
 		snprintf(config.fwname, sizeof(config.fwname),
 			 "qca/htbtfw%02x.tlv", rom_ver);
 	} else if (soc_type == QCA_WCN6750) {
-		rom_ver = ((soc_ver & 0x00000f00) >> 0x04) |
-			    (soc_ver & 0x0000000f);
 		/* Choose mbn file by default.If mbn file is not found
 		 * then choose tlv file
 		 */