cpu/intel: Rename socket_mPGA478MN to socket_p

These marketing names are much easier to distinguish. My
mnemonic: Socket M => up to Merom, Socket P => up to Penryn.

Change-Id: I3c2a59596cf7f3cd763bd79962ad326ab080677b
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/31645
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/cpu/intel/Kconfig

@@ -21,7 +21,7 @@ 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_m/Kconfig
-source src/cpu/intel/socket_mPGA478MN/Kconfig
+source src/cpu/intel/socket_p/Kconfig
 source src/cpu/intel/socket_mPGA604/Kconfig
 source src/cpu/intel/socket_441/Kconfig
 source src/cpu/intel/socket_LGA775/Kconfig

src/cpu/intel/Makefile.inc

@@ -9,7 +9,7 @@ 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_M) += socket_m
-subdirs-$(CONFIG_CPU_INTEL_SOCKET_MPGA478MN) += socket_mPGA478MN
+subdirs-$(CONFIG_CPU_INTEL_SOCKET_P) += socket_p
 subdirs-$(CONFIG_CPU_INTEL_SOCKET_MPGA604) += socket_mPGA604
 subdirs-$(CONFIG_NORTHBRIDGE_INTEL_NEHALEM) += model_2065x
 subdirs-$(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE) += model_206ax

src/cpu/intel/socket_p/Kconfig

@@ -1,11 +1,11 @@
-config CPU_INTEL_SOCKET_MPGA478MN
+config CPU_INTEL_SOCKET_P
 	bool
 	select CPU_INTEL_MODEL_1067X
 	select CPU_INTEL_MODEL_6FX
 	select MMX
 	select SSE
 
-if CPU_INTEL_SOCKET_MPGA478MN
+if CPU_INTEL_SOCKET_P
 
 config DCACHE_RAM_BASE
 	hex