When the CFLAGS variable is appended to, the missing space causes build
errors when CFLAGS was set previously.
For example:
error: unrecognized command-line option '-mno-unaligned-access-fdebug-prefix-map=${CARGO_HOME}=${TARGET_DBGSRC_DIR}/cargo_home'
(From OE-Core rev: cac54e6a6c6601629305b006f99fd1215565182b)
Signed-off-by: Renat Khalikov <renat_khalikov@trimble.com>
CC: Tim Orling <tim.orling@konsulko.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>