TEMP: memor<y debugging, remove when layout is safe!

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
ARM: pia335x: add real MACH_TYPE id

- http://www.arm.linux.org.uk/developer/machines/

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
ARM: pia335x: fix UART0 pin muxing

- UART0 was not correctly initialized
- EEPROM has not been read yet even though we tried to mux based on the
  board id

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
ARM: pia335x: disable evm check for default MPU PLL freq

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
ARM: pia335x: enable NAND init only for E2 variant of the board

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
ARM: am335x_pia: disable PIA_KM defines and do switching via boards.cfg

- PIA_E2 and PIA_MMI are defined depending on board configuration
- use am335x_pia_config for E2 board
- use am335x_pia_mmi_config for MMI board

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
ARM: pia335x: eeprom initialization based on new board config defines

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>