db845c: firmware: Update Qcom RB3 firmware to v4

Update db845c firmware package from Qcom RB3 v3 to v4.
* devcfg.mbn is updated for improved i2c and SPI support.

Qcom firmwares and license downloaded from:
  http://releases.linaro.org/96boards/dragonboard845c/qualcomm/firmware/RB3_firmware_20190529180356-v4.zip

Change-Id: I202873ad4833255d20ca19ce9efa559cf5cd023f
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
diff --git a/db845c/firmware/devcfg.mbn b/db845c/firmware/devcfg.mbn
index 3f8e6ef..f7080e7 100644
--- a/db845c/firmware/devcfg.mbn
+++ b/db845c/firmware/devcfg.mbn
Binary files differ