Add detection support and write-enable for the GIGABYTE GA-MA78GM-S2H

Thanks Michael Heimann for reporting.

The board was misidentified as a GIGABYTE GA-MA78G-DS3H though, as the
old PCI IDs and subsystem IDs of match. Thus, use differing ones for
both boards, which is not so easy. The only usable-looking difference
is in the SATA controller subsystem IDs. This should allow us to
properly detect both boards.

Corresponding to flashrom svn r534.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
diff --git a/board_enable.c b/board_enable.c
index 15b1747..37fc1b6 100644
--- a/board_enable.c
+++ b/board_enable.c
@@ -679,7 +679,8 @@
 	{0x1106, 0x3227, 0x1458, 0x5001,  0x10ec, 0x8139, 0x1458, 0xe000, NULL,         NULL,          "GIGABYTE",    "GA-7VT600",          board_biostar_p4m80_m4},
 	{0x10de, 0x0360,      0,      0,       0,      0,      0,      0, "gigabyte",   "m57sli",      "GIGABYTE",    "GA-M57SLI-S4",       it87xx_probe_spi_flash},
 	{0x10de, 0x03e0,      0,      0,       0,      0,      0,      0, "gigabyte",   "m61p",        "GIGABYTE",    "GA-M61P-S3",         it87xx_probe_spi_flash},
-	{0x1002, 0x4398, 0x1458, 0x5004,  0x1002, 0x4385, 0x1458, 0x4385, NULL,         NULL,          "GIGABYTE",    "GA-MA78G-DS3H",      it87xx_probe_spi_flash},
+	{0x1002, 0x4398, 0x1458, 0x5004,  0x1002, 0x4391, 0x1458, 0xb000, NULL,         NULL,          "GIGABYTE",    "GA-MA78G-DS3H",      it87xx_probe_spi_flash},
+	{0x1002, 0x4398, 0x1458, 0x5004,  0x1002, 0x4391, 0x1458, 0xb002, NULL,         NULL,          "GIGABYTE",    "GA-MA78GM-S2H",      it87xx_probe_spi_flash},
 	/* SB600 LPC, RD790 North. Neither are specific to the GA-MA790FX-DQ6. The coreboot ID is here to be able to trigger the board enable more easily. */
 	{0x1002, 0x438d, 0x1458, 0x5001,  0x1002, 0x5956, 0x1002, 0x5956, "gigabyte",   "ma790fx-dq6", "GIGABYTE",    "GA-MA790FX-DQ6",     it87xx_probe_spi_flash},
 	{0x1166, 0x0223, 0x103c, 0x320d,  0x102b, 0x0522, 0x103c, 0x31fa, "hp",         "dl145_g3",    "HP",          "DL145 G3",           board_hp_dl145_g3_enable},