ath10k: update the IRAM bank number for QCA9377

BugLink: https://bugs.launchpad.net/bugs/1748345

Preparation for a new QCA9377 firmware release. The new firmware release
requires more IRAM banks, hence update that on ath10k.

The IRAM banks promotion won't break any backwards compatibility, as those IRAM
banks were not getting used in previous firmware releases.
Signed-off-by: Ryan Hsu <ryanhsu@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
(backported from commit fc8b9263)
Signed-off-by: AceLan Kao <acelan.kao@canonical.com>
Acked-by: Colin King <colin.king@canonical.com>
Acked-by: Anthony Wong <anthony.wong@canonical.com
Acked-by: Wen-chien Jesse Sung <jesse.sung@canonical.com>
Signed-off-by: Brad Figg <brad.figg@canonical.com>

drivers/net/wireless/ath/ath10k/pci.c

@@ -1886,7 +1886,7 @@ static int ath10k_pci_get_num_banks(struct ath10k *ar)
 		}
 		break;
 	case QCA9377_1_0_DEVICE_ID:
-		return 2;
+		return 9;
 	}
 
 	ath10k_warn(ar, "unknown number of banks, assuming 1\n");