pinephone-uboot: update to 0.0.20200917.

Fixes random wifi MAC issue, see this issue for more details:
https://gitlab.com/ubports/community-ports/pinephone/-/issues/225

pinephone-uboot: fix usage of makejobs variable

srcpkgs/pinephone-uboot/template

@@ -1,6 +1,6 @@
 # Template file for 'pinephone-uboot'
 pkgname=pinephone-uboot
-version=0.0.20200904
+version=0.0.20200917
 revision=1
 archs="aarch64*"
 create_wrksrc=yes
@@ -12,7 +12,7 @@ maintainer="John Sullivan <jsullivan@csumb.edu>"
 license="GPL-2.0-only, BSD-3-Clause"
 homepage="http://www.denx.de/wiki/U-Boot/WebHome"
 
-_tag_uboot=crust-2020-09-04
+_tag_uboot=crust-2020-09-17
 _commit_armtf=2bdb4611ad6efdb3da2ff0d2de7fee4c43e95aeb
 _commit_crust=e63106c70bc4ddfa3575e4f1f3667de0795252a8
 
@@ -24,7 +24,7 @@ distfiles="https://gitlab.com/pine64-org/u-boot/-/archive/${_tag_uboot}/${_uboot
  https://github.com/ARM-software/arm-trusted-firmware/archive/${_commit_armtf}.tar.gz
  https://github.com/crust-firmware/crust/archive/${_commit_crust}.tar.gz"
 
-checksum="06eb107aced5b41da3cd0cfdcc2ad90b7c51fcbec7aac5c7388e30c58e2536b8
+checksum="395e61790d4877e11c470445dfee834a017a4b5df5f7ee34ebcaa125713150dc
  48291b621a4bc38c7956964407130edd2d02d8b3789fce4193ac1b747a5b37db
  6fc2d68725a78b1ca6e7c6602286fc2aa2ddcdea28e83a85f6b988fcc5a513b8"
 
@@ -68,13 +68,13 @@ do_build() {
 		_hostcc="HOST_COMPILE=${XBPS_CROSS_TRIPLET}-"
 	fi
 
-	make -C $_armtf $_cross PLAT=sun50i_a64 DEBUG=1 -j $makejobs bl31
-	make -C $_crust $_hostcc $_or1k -j $makejobs scp
+	make -C $_armtf $_cross PLAT=sun50i_a64 DEBUG=1 $makejobs bl31
+	make -C $_crust $_hostcc $_or1k $makejobs scp
 
 	export BL31=$wrksrc/$_armtf/build/sun50i_a64/debug/bl31.bin
 	export SCP=$wrksrc/$_crust/build/scp/scp.bin
 
-	make -C $_uboot $_cross -j $makejobs
+	make -C $_uboot $_cross $makejobs
 }
 
 do_install() {