powerpc: T1042: Remove macro CONFIG_PPC_T1042

Replace CONFIG_PPC_T1042 with ARCH_T1024 in Kconfig and clean up
existing macros.

Signed-off-by: York Sun <york.sun@nxp.com>
diff --git a/arch/powerpc/cpu/mpc85xx/Kconfig b/arch/powerpc/cpu/mpc85xx/Kconfig
index 5958536..ef41869b 100644
--- a/arch/powerpc/cpu/mpc85xx/Kconfig
+++ b/arch/powerpc/cpu/mpc85xx/Kconfig
@@ -226,6 +226,7 @@
 
 config TARGET_T1042RDB
 	bool "Support T1042RDB"
+	select ARCH_T1042
 	select SUPPORT_SPL
 	select PHYS_64BIT
 
@@ -379,6 +380,9 @@
 config ARCH_T1040
 	bool
 
+config ARCH_T1042
+	bool
+
 source "board/freescale/b4860qds/Kconfig"
 source "board/freescale/bsc9131rdb/Kconfig"
 source "board/freescale/bsc9132qds/Kconfig"
diff --git a/arch/powerpc/cpu/mpc85xx/Makefile b/arch/powerpc/cpu/mpc85xx/Makefile
index 6310a72..375a905 100644
--- a/arch/powerpc/cpu/mpc85xx/Makefile
+++ b/arch/powerpc/cpu/mpc85xx/Makefile
@@ -50,7 +50,7 @@
 obj-$(CONFIG_ARCH_B4420) += b4860_ids.o
 obj-$(CONFIG_ARCH_B4860) += b4860_ids.o
 obj-$(CONFIG_ARCH_T1040) += t1040_ids.o
-obj-$(CONFIG_PPC_T1042)	+= t1040_ids.o
+obj-$(CONFIG_ARCH_T1042)	+= t1040_ids.o
 obj-$(CONFIG_PPC_T1020)	+= t1040_ids.o
 obj-$(CONFIG_PPC_T1022)	+= t1040_ids.o
 obj-$(CONFIG_ARCH_T1023) += t1024_ids.o
@@ -93,7 +93,7 @@
 obj-$(CONFIG_ARCH_B4860) += b4860_serdes.o
 obj-$(CONFIG_ARCH_BSC9132) += bsc9132_serdes.o
 obj-$(CONFIG_ARCH_T1040) += t1040_serdes.o
-obj-$(CONFIG_PPC_T1042)	+= t1040_serdes.o
+obj-$(CONFIG_ARCH_T1042)	+= t1040_serdes.o
 obj-$(CONFIG_PPC_T1020)	+= t1040_serdes.o
 obj-$(CONFIG_PPC_T1022)	+= t1040_serdes.o
 obj-$(CONFIG_ARCH_T1023) += t1024_serdes.o
diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h
index 7a65caa..8efc805 100644
--- a/arch/powerpc/include/asm/config_mpc85xx.h
+++ b/arch/powerpc/include/asm/config_mpc85xx.h
@@ -679,7 +679,7 @@
 #define CONFIG_NUM_DDR_CONTROLLERS	1
 #endif
 
-#elif defined(CONFIG_ARCH_T1040) || defined(CONFIG_PPC_T1042) ||\
+#elif defined(CONFIG_ARCH_T1040) || defined(CONFIG_ARCH_T1042) ||\
 defined(CONFIG_PPC_T1020) || defined(CONFIG_PPC_T1022)
 #define CONFIG_E5500
 #define CONFIG_FSL_CORENET		/* Freescale CoreNet platform */
@@ -689,7 +689,7 @@
 #ifdef CONFIG_SYS_FSL_DDR4
 #define CONFIG_SYS_FSL_DDRC_GEN4
 #endif
-#if defined(CONFIG_ARCH_T1040) || defined(CONFIG_PPC_T1042)
+#if defined(CONFIG_ARCH_T1040) || defined(CONFIG_ARCH_T1042)
 #define CONFIG_MAX_CPUS			4
 #elif defined(CONFIG_PPC_T1020) || defined(CONFIG_PPC_T1022)
 #define CONFIG_MAX_CPUS			2
diff --git a/arch/powerpc/include/asm/immap_85xx.h b/arch/powerpc/include/asm/immap_85xx.h
index 4de9fd3..5d63228 100644
--- a/arch/powerpc/include/asm/immap_85xx.h
+++ b/arch/powerpc/include/asm/immap_85xx.h
@@ -1776,7 +1776,7 @@
 #define FSL_CORENET2_RCWSR4_SRDS2_PRTCL	0x00ff0000
 #define FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT	16
 #define FSL_CORENET_RCWSR6_BOOT_LOC	0x0f800000
-#elif defined(CONFIG_ARCH_T1040) || defined(CONFIG_PPC_T1042) ||\
+#elif defined(CONFIG_ARCH_T1040) || defined(CONFIG_ARCH_T1042) ||\
 defined(CONFIG_PPC_T1020) || defined(CONFIG_PPC_T1022)
 #define FSL_CORENET2_RCWSR4_SRDS1_PRTCL	0xff000000
 #define FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT	24