Added force_eeprom_read=0 to make sure sound cards are working

This is a workaround as cards that are I2S clock master don't seem to work
if they are configured from EEPROM during initial boot.
The setting will be removed after the initial boot.

buildroot/package/configtxt/configtxt.mk

@@ -8,6 +8,8 @@ define CONFIGTXT_INSTALL_TARGET_CMDS
         echo "# Enable I2C and SPI" >> $(BINARIES_DIR)/rpi-firmware/config.txt
 	echo "dtparam=i2c=on" >> $(BINARIES_DIR)/rpi-firmware/config.txt
 	echo "dtparam=spi=on" >> $(BINARIES_DIR)/rpi-firmware/config.txt
+	echo "# Workaround force_eeprom_read" >> $(BINARIES_DIR)/rpi-firmware/config.txt
+	echo "force_eeprom_read=0" >> $(BINARIES_DIR)/rpi-firmware/config.txt
 endef
 
 define CONFIGTXT_QUIET_INSTALL_TARGET_CMDS