powerpc, 8xx: Migrate to Kconfig

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Heiko Schocher <hs@denx.de>

scripts/config_whitelist.txt

@@ -15,7 +15,6 @@ CONFIG_88F5182
 CONFIG_8xx_CONS_NONE
 CONFIG_8xx_CONS_SMC1
 CONFIG_8xx_CONS_SMC2
-CONFIG_8xx_GCLK_FREQ
 CONFIG_A003399_NOR_WORKAROUND
 CONFIG_A008044_WORKAROUND
 CONFIG_ACX517AKN
@@ -1533,10 +1532,6 @@ CONFIG_MPC83XX_PCI2
 CONFIG_MPC85XX_FEC
 CONFIG_MPC85XX_FEC_NAME
 CONFIG_MPC85XX_PCI2
-CONFIG_MPC866
-CONFIG_MPC866_FAMILY
-CONFIG_MPC885
-CONFIG_MPC885_FAMILY
 CONFIG_MPC8XXX_SPI
 CONFIG_MPC8xxx_DISABLE_BPTR
 CONFIG_MPLL_FREQ
@@ -2917,7 +2912,6 @@ CONFIG_SYS_DEBUG_SERVER_FW_IN_NOR
 CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS
 CONFIG_SYS_DEFAULT_VIDEO_MODE
 CONFIG_SYS_DEF_EEPROM_ADDR
-CONFIG_SYS_DER
 CONFIG_SYS_DEVICE_NULLDEV
 CONFIG_SYS_DFU_DATA_BUF_SIZE
 CONFIG_SYS_DFU_MAX_FILE_SIZE
@@ -4483,7 +4477,6 @@ CONFIG_SYS_PIOC_PPUDR_VAL
 CONFIG_SYS_PIOD_PDR_VAL1
 CONFIG_SYS_PIOD_PPUDR_VAL
 CONFIG_SYS_PIO_MODE
-CONFIG_SYS_PISCR
 CONFIG_SYS_PIT_BASE
 CONFIG_SYS_PIT_PRESCALE
 CONFIG_SYS_PIXIS_VBOOT_ENABLE
@@ -4501,7 +4494,6 @@ CONFIG_SYS_PLL_BYPASS
 CONFIG_SYS_PLL_FDR
 CONFIG_SYS_PLL_ODR
 CONFIG_SYS_PLL_SETTLING_TIME
-CONFIG_SYS_PLPRCR
 CONFIG_SYS_PLUG_BASE
 CONFIG_SYS_PMAN
 CONFIG_SYS_PMC_BASE
@@ -4730,7 +4722,6 @@ CONFIG_SYS_SH_SDHI_NR_CHANNEL
 CONFIG_SYS_SICRH
 CONFIG_SYS_SICRL
 CONFIG_SYS_SIL1178_I2C
-CONFIG_SYS_SIUMCR
 CONFIG_SYS_SJA1000_BASE
 CONFIG_SYS_SMC0_CYCLE0_VAL
 CONFIG_SYS_SMC0_MODE0_VAL
@@ -4802,11 +4793,9 @@ CONFIG_SYS_STATUS_OK
 CONFIG_SYS_STMICRO_BOOT
 CONFIG_SYS_SUPPORT_64BIT_DATA
 CONFIG_SYS_SXCNFG_VAL
-CONFIG_SYS_SYPCR
 CONFIG_SYS_SYSTEMACE_BASE
 CONFIG_SYS_SYSTEMACE_WIDTH
 CONFIG_SYS_TBIPA_VALUE
-CONFIG_SYS_TBSCR
 CONFIG_SYS_TCLK
 CONFIG_SYS_TEXT_ADDR
 CONFIG_SYS_TEXT_BASE_NOR