Convert to new override syntax

This is the result of automated script (0.9.1) conversion:

oe-core/scripts/contrib/convert-overrides.py .

converting the metadata to use ":" as the override character instead of "_".

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-python/recipes-devtools/python/python3-pyfirmata_1.1.0.bb

@@ -3,7 +3,7 @@ LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=84ddcef430b7c44caa22b2ff4b37a3df"
 PYPI_PACKAGE = "pyFirmata"
 
-RDEPENDS_${PN} = "\
+RDEPENDS:${PN} = "\
     ${PYTHON_PN}-pyserial \
 "