meta-raspberrypi: subtree update:17b56ab075..8dc3a31088

Andrei Gherzan (1):
      rpi-cmdline: Make rootfstype easier to customize

Martin Jansa (1):
      python3-adafruit-*: fix branch parameter

Omer Akram (1):
      Update raspberrypi firmware to 20210527

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I04fd1914fc163c98595bd66483db61e7710be7b0
diff --git a/meta-raspberrypi/recipes-bsp/bootfiles/rpi-cmdline.bb b/meta-raspberrypi/recipes-bsp/bootfiles/rpi-cmdline.bb
index 13fe304..74550ef 100644
--- a/meta-raspberrypi/recipes-bsp/bootfiles/rpi-cmdline.bb
+++ b/meta-raspberrypi/recipes-bsp/bootfiles/rpi-cmdline.bb
@@ -7,7 +7,9 @@
 inherit deploy nopackages
 
 CMDLINE_DWC_OTG ?= "dwc_otg.lpm_enable=0"
-CMDLINE_ROOTFS ?= "root=/dev/mmcblk0p2 rootfstype=ext4 rootwait"
+
+CMDLINE_ROOT_FSTYPE ?= "rootfstype=ext4"
+CMDLINE_ROOTFS ?= "root=/dev/mmcblk0p2 ${CMDLINE_ROOT_FSTYPE} rootwait"
 
 CMDLINE_SERIAL ?= "${@oe.utils.conditional("ENABLE_UART", "1", "console=serial0,115200", "", d)}"