cpu/intel: Rename socket_mFCPGA478 to socket_m

The name was wrong. mFCPGA478 is actually a pseudonym for mPGA478MN,
the successor of the socket that was meant.

The official name of this socket is mPGA478MT. But "Socket M" is much
easier to distinguish.

Change-Id: I4efeaca69acddfcdc5e957b0b521544314d46eeb
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/31642
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/cpu/intel/Kconfig

@@ -22,7 +22,7 @@ source src/cpu/intel/slot_1/Kconfig
 source src/cpu/intel/socket_BGA956/Kconfig
 source src/cpu/intel/socket_BGA1284/Kconfig
 source src/cpu/intel/socket_FCBGA559/Kconfig
-source src/cpu/intel/socket_mFCPGA478/Kconfig
+source src/cpu/intel/socket_m/Kconfig
 source src/cpu/intel/socket_mPGA478MN/Kconfig
 source src/cpu/intel/socket_mPGA604/Kconfig
 source src/cpu/intel/socket_441/Kconfig

src/cpu/intel/Makefile.inc

@@ -8,7 +8,7 @@ subdirs-$(CONFIG_CPU_INTEL_SOCKET_441) += socket_441
 subdirs-$(CONFIG_CPU_INTEL_SOCKET_BGA956) += socket_BGA956
 subdirs-$(CONFIG_CPU_INTEL_SOCKET_BGA1284) += socket_BGA1284
 subdirs-$(CONFIG_CPU_INTEL_SOCKET_FCBGA559) += socket_FCBGA559
-subdirs-$(CONFIG_CPU_INTEL_SOCKET_MFCPGA478) += socket_mFCPGA478
+subdirs-$(CONFIG_CPU_INTEL_SOCKET_M) += socket_m
 subdirs-$(CONFIG_CPU_INTEL_SOCKET_MPGA478MN) += socket_mPGA478MN
 subdirs-$(CONFIG_CPU_INTEL_SOCKET_MPGA604) += socket_mPGA604
 subdirs-$(CONFIG_NORTHBRIDGE_INTEL_NEHALEM) += model_2065x

src/cpu/intel/socket_m/Kconfig

@@ -1,7 +1,7 @@
-config CPU_INTEL_SOCKET_MFCPGA478
+config CPU_INTEL_SOCKET_M
 	bool
 
-if CPU_INTEL_SOCKET_MFCPGA478
+if CPU_INTEL_SOCKET_M
 
 config SOCKET_SPECIFIC_OPTIONS # dummy
 	def_bool y