Shrinked spi_slave and spi_flash code with respect to added flash features.

Jagannadha Sutradharudu Teki (5): sf: ops: Squash the malloc+memset combo sf: Optimize flash features code sf: Use mode_bits for dual_flash connection doc: SPI: Update the dual_flash info sf: Update bank configuration

doc/SPI/README.dual-flash | 5 +- doc/SPI/README.sf-features | 125 ++++++++++++++++++++++++++++++ drivers/mtd/spi/sf.c | 4 +- drivers/mtd/spi/sf_internal.h | 1 - drivers/mtd/spi/sf_ops.c | 15 ++-- drivers/mtd/spi/sf_params.c | 172 +++++++++++++++++++++--------------------- drivers/mtd/spi/sf_probe.c | 102 ++++++++++++------------- include/spi.h | 42 ++++------- include/spi_flash.h | 24 +++--- 9 files changed, 300 insertions(+), 190 deletions(-) create mode 100644 doc/SPI/README.sf-features