Update spi_get_erasefn_from_opcode()

We forgot to add a few SPI erase functions to the helper function that is
used for SFDP. Also, sort the declarations in the header.

Corresponding to flashrom svn r1672.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
diff --git a/chipdrivers.h b/chipdrivers.h
index 243b64a..dd20631 100644
--- a/chipdrivers.h
+++ b/chipdrivers.h
@@ -45,12 +45,12 @@
 int spi_block_erase_20(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
 int spi_block_erase_50(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
 int spi_block_erase_52(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
-int spi_block_erase_81(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
-int spi_block_erase_d7(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
-int spi_block_erase_d8(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
 int spi_block_erase_60(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
 int spi_block_erase_62(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+int spi_block_erase_81(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
 int spi_block_erase_c7(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+int spi_block_erase_d7(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+int spi_block_erase_d8(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
 erasefunc_t *spi_get_erasefn_from_opcode(uint8_t opcode);
 int spi_chip_write_1(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len);
 int spi_byte_program(struct flashctx *flash, unsigned int addr, uint8_t databyte);