UPSTREAM: rtw88: 8822c: fix missing brace warning for old compilers

For older versions of gcc, the array = {0}; will cause warnings:

drivers/net/wireless/realtek/rtw88/rtw8822c.c: In function 'rtw8822c_power_trim':
>> drivers/net/wireless/realtek/rtw88/rtw8822c.c:1039:2: warning:
>> missing braces around initializer [-Wmissing-braces]
s8 bb_gain[2][8] = {0};
^
drivers/net/wireless/realtek/rtw88/rtw8822c.c:1039:2: warning: (near
initialization for 'bb_gain[0]') [-Wmissing-braces]

Fixes: 5ad4d8957b69 ("rtw88: set power trim according to efuse PG values")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200522035521.12295-1-yhchuang@realtek.com
(cherry picked from commit 4e1a341580f2e51f7d1c992b50c28a6c4a242f7f)

BUG=b:137376638
TEST=measure the tx power, without this patch, the output power

Signed-off-by: Linux Patches Robot <linux-patches-robot@chromeos-missing-patches.google.com.iam.gserviceaccount.com>
Change-Id: Ifc212ee1b879182d247ac8b03c914c293541aada
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/2232020
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Commit-Queue: Guenter Roeck <groeck@chromium.org>
Tested-by: Guenter Roeck <groeck@chromium.org>
1 file changed