Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/5834758777
Commit e7d16c35a (boot/arm-trusted-firmware: fix the RPATH of fiptool) tried
to fix the build of host-fiptool, but forgot to pass HOST_CFLAGS.
On hosts without (compatible) openssl development headers, this breaks
the build when it cannot find the openssl headers:
fiptool_platform.h:19:11: fatal error: openssl/sha.h: No such file or directory
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit e6ef64d955)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
69a90b0739