package/arm-gnu-toolchain: drop prompt for _SUPPORTS option
The _SUPPORTS option should be blind: it represents a restriction that
we certainly do not want to allow the user to lift by manually enabling
that option...
Fixes: 65f268e21cbe (package/arm-gnu-toolchain: add
BR2_PACKAGE_HOST_ARM_GNU_TOOLCHAIN_SUPPORTS)
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Bryce Johnson <bryce@redpinelabs.com>
Cc: Suniel Mahesh <sunil@amarulasolutions.com>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>