sh: Drop unreferenced CONFIG_* defines

The following config symbols are only defined once and never referenced
anywhere else:

CONFIG_AP325RXA
CONFIG_AP_SH4A_4A
CONFIG_CPU_SH_TYPE_R
CONFIG_ECOVEC
CONFIG_ESPT
CONFIG_MIGO_R
CONFIG_MPR2
CONFIG_MS7720SE
CONFIG_MS7722SE
CONFIG_MS7750SE
CONFIG_R0P7734
CONFIG_R2DPLUS
CONFIG_RSK7203
CONFIG_RSK7264
CONFIG_RSK7269
CONFIG_SH7752EVB
CONFIG_SH7753EVB
CONFIG_SH7757LCR
CONFIG_SH7763RDP
CONFIG_SH7785LCR

Most of them are config symbols named after the respective boards which
seems to have been a standard practice at some point.

Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>

scripts/config_whitelist.txt

@@ -33,7 +33,6 @@ CONFIG_AM437X_USB2PHY2_HOST
 CONFIG_AMCORE
 CONFIG_ANDES_PCU
 CONFIG_ANDES_PCU_BASE
-CONFIG_AP325RXA
 CONFIG_APBH_DMA
 CONFIG_APBH_DMA_BURST
 CONFIG_APBH_DMA_BURST8
@@ -41,7 +40,6 @@ CONFIG_APER_0_BASE
 CONFIG_APER_1_BASE
 CONFIG_APER_SIZE
 CONFIG_APUS_FAST_EXCEPT
-CONFIG_AP_SH4A_4A
 CONFIG_ARCH_ADPAG101P
 CONFIG_ARCH_CPU_INIT
 CONFIG_ARCH_HAS_ILOG2_U32
@@ -333,7 +331,6 @@ CONFIG_CPU_SH7757
 CONFIG_CPU_SH7763
 CONFIG_CPU_SH7780
 CONFIG_CPU_SH7785
-CONFIG_CPU_SH_TYPE_R
 CONFIG_CPU_TYPE_R
 CONFIG_CPU_VR41XX
 CONFIG_CQSPI_DECODER
@@ -504,7 +501,6 @@ CONFIG_ECC_MODE_SHIFT
 CONFIG_ECC_SRAM_ADDR_MASK
 CONFIG_ECC_SRAM_ADDR_SHIFT
 CONFIG_ECC_SRAM_REQ_BIT
-CONFIG_ECOVEC
 CONFIG_ECOVEC_ROMIMAGE_ADDR
 CONFIG_EDB9301
 CONFIG_EDB9302
@@ -596,7 +592,6 @@ CONFIG_ESDHC_DETECT_QUIRK
 CONFIG_ESDHC_DETECT_USE_EXTERN_IRQ1
 CONFIG_ESDHC_HC_BLK_ADDR
 CONFIG_ESPRESSO7420
-CONFIG_ESPT
 CONFIG_ET1100_BASE
 CONFIG_ETH1ADDR
 CONFIG_ETH2ADDR
@@ -1333,7 +1328,6 @@ CONFIG_MENUKEY
 CONFIG_MENUPROMPT
 CONFIG_MENU_SHOW
 CONFIG_MFG_ENV_SETTINGS
-CONFIG_MIGO_R
 CONFIG_MII
 CONFIG_MIIM_ADDRESS
 CONFIG_MII_DEFAULT_TSEC
@@ -1402,11 +1396,7 @@ CONFIG_MPC85XX_PCI2
 CONFIG_MPC8XXX_SPI
 CONFIG_MPC8xxx_DISABLE_BPTR
 CONFIG_MPLL_FREQ
-CONFIG_MPR2
 CONFIG_MP_CLK_FREQ
-CONFIG_MS7720SE
-CONFIG_MS7722SE
-CONFIG_MS7750SE
 CONFIG_MSHC_FREQ
 CONFIG_MTD_CONCAT
 CONFIG_MTD_DEVICE
@@ -1750,8 +1740,6 @@ CONFIG_QSPI
 CONFIG_QSPI_QUAD_SUPPORT
 CONFIG_QSPI_SEL_GPIO
 CONFIG_QUOTA
-CONFIG_R0P7734
-CONFIG_R2DPLUS
 CONFIG_R7780MP
 CONFIG_R8A66597_BASE_ADDR
 CONFIG_R8A66597_ENDIAN
@@ -1825,9 +1813,6 @@ CONFIG_ROCKCHIP_USB2_PHY
 CONFIG_ROM_STUBS
 CONFIG_ROOTFS_OFFSET
 CONFIG_ROOTPATH
-CONFIG_RSK7203
-CONFIG_RSK7264
-CONFIG_RSK7269
 CONFIG_RTC_DS1337
 CONFIG_RTC_DS1337_NOOSC
 CONFIG_RTC_DS1338
@@ -1924,16 +1909,11 @@ CONFIG_SGI_IP28
 CONFIG_SH4_PCI
 CONFIG_SH73A0
 CONFIG_SH7751_PCI
-CONFIG_SH7752EVB
-CONFIG_SH7753EVB
-CONFIG_SH7757LCR
 CONFIG_SH7757LCR_DDR_ECC
-CONFIG_SH7763RDP
 CONFIG_SH7780_PCI
 CONFIG_SH7780_PCI_BAR
 CONFIG_SH7780_PCI_LAR
 CONFIG_SH7780_PCI_LSR
-CONFIG_SH7785LCR
 CONFIG_SHARP_LM8V31
 CONFIG_SHARP_LQ035Q7DH06
 CONFIG_SHEEVA_88SV131