Rename SPI erase functions to include opcode

To make it easier to add new SPI chips to flashchips.c, rename functions
with multiple possible opcodes from linear numbering at the end (_1, _2)
to include the opcode at the end (_60, _c7).

That way, you only have to take a short look at the data sheet and
choose the right function by appending the opcode listed in the data
sheet. No functional changes.

Corresponding to flashrom svn r165 and coreboot v2 svn r3009.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Ward Vandewege <ward@gnu.org>
diff --git a/flash.h b/flash.h
index 09e239e..e036387 100644
--- a/flash.h
+++ b/flash.h
@@ -257,7 +257,7 @@
 int generic_spi_command(unsigned int writecnt, unsigned int readcnt, const unsigned char *writearr, unsigned char *readarr);
 void generic_spi_write_enable();
 void generic_spi_write_disable();
-int generic_spi_chip_erase(struct flashchip *flash);
+int generic_spi_chip_erase_c7(struct flashchip *flash);
 int generic_spi_chip_write(struct flashchip *flash, uint8_t *buf);
 
 /* 82802ab.c */