graphics/lux: unbreak on armv7

An upcoming patch will fix the misconfiguration that restricts the
address space for armv7 processes on arm64 to ~2GB instead of the ~3.5GB
it should have been.  With that patch applied, the port builds fine.
As a temporary workaround, the following sysctls can be set to effect
the same change (though affecting arm64 processes too):

    kern.maxssiz=67108864
    kern.maxdsiz=536870912

armv6 stays broken as we cannot run armv6 processes on arm64 (see
PR #256132).

PR:		274705
MFH:		2023Q4
See also:	https://reviews.freebsd.org/D42451

graphics/lux/Makefile

@@ -13,7 +13,6 @@ LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BROKEN_armv6=	address space exhaustion in compiler
-BROKEN_armv7=	address space exhaustion in compiler
 
 LIB_DEPENDS=	libhwy.so:devel/highway \
 		libsfml-window.so:devel/sfml \