mb/siemens/mc_rpl: Correct SMBIOS socket type to BGA1744

The mc_rpl platform uses BGA1744, not LGA1700. Update the Kconfig
selection to report the correct socket type in SMBIOS.

TEST=Built for mc_rpl1, verified `dmidecode -t processor | grep Upgrade`
     shows "Socket BGA1744"

Change-Id: I119c6e95ba0d4a5d7afd3f922f2662aa55ac3f64
Signed-off-by: Kilian Krause <kilian.krause@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/89900
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>

src/mainboard/siemens/mc_rpl/Kconfig

@@ -3,7 +3,7 @@
 config BOARD_SIEMENS_BASEBOARD_MC_RPL
 	def_bool n
 	select BOARD_ROMSIZE_KB_16384
-	select CPU_INTEL_SOCKET_LGA1700
+	select CPU_INTEL_SOCKET_BGA1744
 	select DRIVER_SIEMENS_NC_FPGA
 	select DRIVERS_I2C_GENERIC
 	select DRIVERS_INTEL_DPTF