added GD25LF256F on flashchips.c
added GIGADEVICE_GD25LF256F=0x6319 on flashchip.h
GD25LF256F is a higher performance 1.8V 256Mbit SPI flash
I have tested on CH347 with erase, program, read, protection.
Change-Id: I21a71606476e823faa38a7920aa2b10e25d68d26
Signed-off-by: Victor <vlim@gigadevice.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/83717
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>