SENT FOR 3.10: ARM: bcm2835: override the HW UART periphid

Stephen Warren reported the recent commit 78506f2 (add support for
extended FIFO-size of PL011-r1p5) breaks the serial port on the
BCM2835 ARM SoC.

A UART compatible with the ARM PL011-r1p5 should have 32-deep FIFOs.
The BCM2835 UART just looks like an ARM PL011-r1p5, but has 16-deep
FIFOs just like PL011-r1p4 or earlier revisions. As a workaround for
this compatibility issue, this patch overrides the HW UART periphid
register values with the actually compatible UART periphid 0x00241011
(r1p3 or r1p4).

Reported-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Jongsung Kim <neidhard.kim@lge.com>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
HACK: enable DWC2 OTG on RPi

Turn on USB power first in U-Boot:

// msg with 2 parameters, up to 2 responses
setenv prop-2-2 'mw.l 0x00001000 0x00000020 ; mw.l 0x00001004 0x00000000 ; mw.l 0x00001008 \$tag ; mw.l 0x0000100c 0x00000008 ; mw.l 0x00001010 0x00000008 ; mw.l 0x00001014 \$p1 ; mw.l 0x00001018 \$p2 ; mw.l 0x0000101c 0x00000000 ; md.l 0x1000 8'

// send msg, read/dump response
setenv send-rec 'mw 0x2000b8a0 0x00001008 ; md 0x2000b880 1 ; md.l 0x00001000 8'

// set power, devid==p1 (3==USB), state,wait==p2 (3==ON/WAIT)
setenv tag 0x28001 ; setenv p1 3 ; setenv p2 3; run prop-2-2 ; run send-rec

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
LOCAL HACK: ARM: bcm2835: enable enc28j60 SPI device

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
HACK: create a Tegra+BCM2835 defconfig