Revision 3091

Handle JEDEC JEP106W continuation codes in SPI RDID. Some vendors like
Programmable Micro Corp (PMC) need this.
Both the serial and parallel flash JEDEC detection routines would
benefit from a parity/sanity check of the vendor ID. Will do this later.

Add support for the PMC Pm25LV family of SPI flash chips.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Chris Lingard  <chris@stockwith.co.uk>