grub: set nopie=yes

I tried to patch include/grub/i386/tsc.h and grub-core/loader/i386/xnu.c
to avoid clobbering %rbx (or %ebx) when using cpuid, but finally the
linking of trig.module would fail due to picking up the LDFLAGS.
Disabling PIE seems to be the only way for now.

srcpkgs/grub/template

@@ -1,7 +1,7 @@
 # Template file for 'grub'
 pkgname=grub
 version=2.00
-revision=24
+revision=25
 hostmakedepends="flex"
 makedepends="libusb-compat-devel ncurses-devel freetype-devel
  liblzma-devel device-mapper-devel font-unifont-bdf fuse-devel"
@@ -14,6 +14,7 @@ homepage="http://www.gnu.org/software/grub/"
 distfiles="$GNU_SITE/grub/grub-$version.tar.xz"
 checksum=784ec38e7edc32239ad75b8e66df04dc8bfb26d88681bc9f627133a6eb85c458
 only_for_archs="i686 i686-musl x86_64 x86_64-musl"
+nopie=yes
 
 subpackages="grub-utils grub-i386-efi"
 case "$XBPS_TARGET_MACHINE" in