build: remove MIPS dsp/dsp2 CPU_SUBTYPE

There does not seem to be any meaningful difference in generated code.
This will save some time and space on snapshot builds

Signed-off-by: Felix Fietkau <nbd@nbd.name>

include/target.mk

@@ -172,8 +172,6 @@ ifeq ($(DUMP),1)
     CPU_CFLAGS_74kc = -mips32r2 -mtune=74kc
     CPU_CFLAGS_1004kc = -mips32r2 -mtune=1004kc
     CPU_CFLAGS_octeon = -march=octeon -mabi=64
-    CPU_CFLAGS_dsp = -mdsp
-    CPU_CFLAGS_dsp2 = -mdspr2
   endif
   ifeq ($(ARCH),i386)
     CPU_TYPE ?= i486

target/linux/brcm47xx/mips74k/target.mk

@@ -1,6 +1,5 @@
 BOARDNAME:=MIPS 74K
 CPU_TYPE:=74kc
-CPU_SUBTYPE:=dsp2
 FEATURES+=mips16
 
 define Target/Description

target/linux/lantiq/xrx200/target.mk

@@ -3,7 +3,6 @@ SUBTARGET:=xrx200
 BOARDNAME:=XRX200
 FEATURES:=squashfs atm mips16 nand ubifs
 CPU_TYPE:=34kc
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES+=kmod-leds-gpio \
 	kmod-gpio-button-hotplug \

target/linux/lantiq/xway/target.mk

@@ -3,7 +3,6 @@ SUBTARGET:=xway
 BOARDNAME:=XWAY
 FEATURES:=squashfs atm mips16 nand ubifs ramdisk
 CPU_TYPE:=34kc
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES+=kmod-leds-gpio kmod-gpio-button-hotplug
 

target/linux/lantiq/xway_legacy/target.mk

@@ -3,7 +3,6 @@ SUBTARGET:=xway_legacy
 BOARDNAME:=XWAY Legacy
 FEATURES:=squashfs atm mips16 ramdisk small_flash
 CPU_TYPE:=34kc
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES+=kmod-leds-gpio kmod-gpio-button-hotplug
 

target/linux/ramips/mt7620/target.mk

@@ -6,7 +6,6 @@ SUBTARGET:=mt7620
 BOARDNAME:=MT7620 based boards
 FEATURES+=usb
 CPU_TYPE:=24kec
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES += kmod-rt2800-pci kmod-rt2800-soc kmod-mt76
 

target/linux/ramips/mt7621/target.mk

@@ -6,7 +6,6 @@ SUBTARGET:=mt7621
 BOARDNAME:=MT7621 based boards
 FEATURES+=usb rtc
 CPU_TYPE:=1004kc
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES += kmod-mt76
 

target/linux/ramips/mt7628/target.mk

@@ -6,7 +6,6 @@ SUBTARGET:=mt7628
 BOARDNAME:=MT7628 based boards
 FEATURES+=usb
 CPU_TYPE:=24kec
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES += kmod-mt76
 

target/linux/ramips/mt7688/target.mk

@@ -6,7 +6,6 @@ SUBTARGET:=mt7688
 BOARDNAME:=MT7688 based boards
 FEATURES+=usb
 CPU_TYPE:=24kec
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES += kmod-mt76
 

target/linux/ramips/rt305x/target.mk

@@ -6,7 +6,6 @@ SUBTARGET:=rt305x
 BOARDNAME:=RT3x5x/RT5350 based boards
 FEATURES+=usb ramdisk
 CPU_TYPE:=24kec
-CPU_SUBTYPE:=dsp
 
 DEFAULT_PACKAGES += kmod-rt2800-soc
 

target/linux/ramips/rt3883/target.mk

@@ -6,7 +6,6 @@ SUBTARGET:=rt3883
 BOARDNAME:=RT3662/RT3883 based boards
 FEATURES+=usb pci
 CPU_TYPE:=74kc
-CPU_SUBTYPE:=dsp2
 
 DEFAULT_PACKAGES += kmod-rt2800-pci kmod-rt2800-soc