meta-ampere:u-boot: Enable SPI master mode by default

The Mt.Jade board designs pin strap, which is shared with an OCP pin.
This causes the pin strap to have the wrong value if the OCP adapter
is plugged and the system is off which consequently disables the SPI
master mode. This makes OpenBMC fail to probe the Host SPI Flash.
Change to set SPI master mode enabled by default, not base on the
pin strap value, so Host SPI NOR can always be probed.

Tested:
  1. Plug Mellanox OCP card into the OCP1 header.
  2. Do AC power board and check if SPI Flash driver
     can probe without error like
  "aspeed-smc 1e630000.spi: Error applying setting, reverse things back"

Signed-off-by: Chanh Nguyen <chanh@os.amperecomputing.com>
Change-Id: Ie36557d8e1580f8a6b59b24ac47557d59af653c5
diff --git a/meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed_%.bbappend b/meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed_%.bbappend
index 4f882dc..0febf92 100644
--- a/meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed_%.bbappend
+++ b/meta-ampere/meta-jade/recipes-bsp/u-boot/u-boot-aspeed_%.bbappend
@@ -5,4 +5,5 @@
             file://0002-aspeed-Disable-internal-PD-resistors-for-GPIOs.patch \
             file://0003-aspeed-support-passing-system-reset-status-to-kernel.patch \
             file://0004-aspeed-add-gpio-support.patch \
+            file://0005-aspeed-Enable-SPI-master-mode.patch \
            "