upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support

wdenk 6fb6af6dc9 * Patch by Stephen Williams, 19 March 2004 ... Increase speed of sector reads from SystemACE, shorten poll timeout and remove a useless reset * Patch by Tolunay Orkun, 19 Mar 2004: Make GigE PHY 1000Mbps Speed/Duplex detection conditional (CONFIG_PHY_GIGE) * Patch by Brad Kemp, 18 Mar 2004: prevent machine checks during a PCI scan * Patch by Pierre Aubert, 18 Mar 2004: Fix string cleaning in IDE identification		21 years ago
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74xx_7xx	* Patches by Reinhard Meyer, 14 Feb 2004:	21 years ago
arm720t	* Patch by Laurent Mohin, 10 Feb 2004:	21 years ago
arm920t	* Add start-up delay to make sure power has stabilized before	21 years ago
arm925t	Add support for Siemens SX1 mobile phone;	21 years ago
arm926ejs	* Patch by Phillippe Robin, 16 Mar 2004:	21 years ago
at91rm9200	* Patch by Steven Scholz, 27 Feb 2004:	21 years ago
i386	Code cleanup; make several boards compile & link.	21 years ago
ixp	Patch by Anders Larsen, 09 Jan 2004:	22 years ago
mcf52x2	Fix typo.	22 years ago
mips	* Patch by liang a lei, 9 Jan 2004:	22 years ago
mpc5xx	* Patches by Reinhard Meyer, 14 Feb 2004:	21 years ago
mpc5xxx	* Patch by Phillippe Robin, 16 Mar 2004:	21 years ago
mpc8xx	Patch by Pierre Aubert, 15 Mar 2004:	21 years ago
mpc85xx	* Patches by Reinhard Meyer, 14 Feb 2004:	21 years ago
mpc824x	* Patches by Reinhard Meyer, 14 Feb 2004:	21 years ago
mpc8260	* Patch by Stephen Williams, 19 March 2004	21 years ago
nios	* Patch by Peter Ryser, 20 Feb 2004:	21 years ago
ppc4xx	Code cleanup; make several boards compile & link.	21 years ago
pxa	* Add start-up delay to make sure power has stabilized before	21 years ago
s3c44b0	Code cleanup; make several boards compile & link.	21 years ago
sa1100	Code cleanup; make several boards compile & link.	21 years ago