dtc: Use noinput flex option for convert-dtsv0 to remove warning
dtc: Use noinput flex option for convert-dtsv0 to remove warning

The convert-dtsv0 lexer doesn't use lex's input() macro/function.
This can result in "defined but not used" warnings.  This patch uses
flex's noinput option to prevent this warning (as we already do for
dtc-lexer.l).

Signed-off-by: David Gibson <aa743a0aaec8f7d7a1f01442503957f4d7a2d634@gibson.dropbear.id.au>

M1cha/android_bootable_bootloader_lk,thornbirdblue/codeaurora_lk,M1cha/lktris,jsr-d9/android_kernel_lk,mozilla-b2g/kernel_lk,Blefish/android_bootable_bootloader_lk,M1cha/android_bootable_bootloader_lk,Foxda-Tech/polaris-bootable-bootloader-lk,t2m-foxfone/kernel_lk,MiCode/mi2_lk,zhuotong/mi2_lk_NoEmmc,Blefish/android_bootable_bootloader_lk,Foxda-Tech/argo8-bootable-bootloader-lk,utilite2/lk,zhuotong/mi2_lk_NoEmmc,efidroid/lk,DooMLoRD/android_bootable_bootloader_lk,RonGokhale/android_lk_bootloader,hanjae/lumiab0,M1cha/lktris,Foxda-Tech/argo8-bootable-bootloader-lk,Redmi-dev/android_bootable_lk,Redmi-dev/android_bootable_lk,lg-devs/g2-bootloader,Foxda-Tech/argo8-bootable-bootloader-lk,efidroid/lk,zhuotong/mi2_lk_NoEmmc,t2m-foxfone/kernel_lk,jbott/lk_gee,Foxda-Tech/argo8-bootable-bootloader-lk,M1cha/mi2_lk,Foxda-Tech/polaris-bootable-bootloader-lk,idor/dk50-bootable_bootloader_lk,mozilla-b2g/kernel_lk,oubeichen/lk-v500,M1cha/android_bootable_bootloader_lk,DooMLoRD/android_bootable_bootloader_lk,mozilla-b2g/fairphone2_kernel_lk,hanjae/lumiab0,t2m-foxfone/android_kernel_lk,thornbirdblue/codeaurora_lk,M1cha/android_bootable_bootloader_lk,lg-devs/g2-bootloader,M1cha/lktris,detule/lk-g2-spr,RonGokhale/android_lk_bootloader,t2m-foxfone/kernel_lk,jbott/lk_gee,Redmi-dev/android_bootable_lk,lg-devs/g2-bootloader,oubeichen/lk-v500,Redmi-dev/android_bootable_lk,jsr-d9/android_kernel_lk,Blefish/android_bootable_bootloader_lk,RonGokhale/android_lk_bootloader,mozilla-b2g/kernel_lk,idor/dk50-bootable_bootloader_lk,jbott/lk_gee,t2m-foxfone/kernel_lk,RonGokhale/android_lk_bootloader,oubeichen/lk-v500,t2m-foxfone/android_kernel_lk,M1cha/mi2_lk,thornbirdblue/codeaurora_lk,M1cha/mi2_lk,MiCode/mi2_lk,MiCode/mi2_lk,zhuotong/mi2_lk_NoEmmc,thornbirdblue/codeaurora_lk,hanjae/lumiab0,jsr-d9/android_kernel_lk,mozilla-b2g/fairphone2_kernel_lk,pichina/lk,mozilla-b2g/kernel_lk,lg-devs/g2-bootloader,Foxda-Tech/polaris-bootable-bootloader-lk,t2m-foxfone/android_kernel_lk,M1cha/mi2_lk,Foxda-Tech/argo8-bootable-bootloader-lk,pichina/lk,hanjae/lumiab0,Blefish/android_bootable_bootloader_lk,oubeichen/lk-v500,pichina/lk,jsr-d10/android_bootable_bootloader_lk,M1cha/mi2_lk,MiCode/mi2_lk,DooMLoRD/android_bootable_bootloader_lk,idor/dk50-bootable_bootloader_lk,zhuotong/mi2_lk_NoEmmc,chirayudesai/android_bootable_bootloader_lk,jsr-d9/android_kernel_lk,t2m-foxfone/android_kernel_lk,idor/dk50-bootable_bootloader_lk,mozilla-b2g/fairphone2_kernel_lk,chirayudesai/android_bootable_bootloader_lk,CanarySolutions/little-kernel,utilite2/lk,lg-devs/g2-bootloader,Blefish/android_bootable_bootloader_lk,jsr-d9/android_kernel_lk,CanarySolutions/little-kernel,Redmi-dev/android_bootable_lk,jsr-d10/android_bootable_bootloader_lk,CanarySolutions/little-kernel,oubeichen/lk-v500,detule/lk-g2-spr,CanarySolutions/little-kernel,MiCode/mi2_lk,efidroid/lk,utilite2/lk,detule/lk-g2-spr,jsr-d10/android_bootable_bootloader_lk,jsr-d10/android_bootable_bootloader_lk,M1cha/lktris,DooMLoRD/android_bootable_bootloader_lk,pichina/lk,M1cha/android_bootable_bootloader_lk,utilite2/lk,chirayudesai/android_bootable_bootloader_lk,thornbirdblue/codeaurora_lk,pichina/lk,Foxda-Tech/polaris-bootable-bootloader-lk,t2m-foxfone/kernel_lk,hanjae/lumiab0,detule/lk-g2-spr,M1cha/android_bootable_bootloader_lk,M1cha/lktris,jbott/lk_gee,jbott/lk_gee,CanarySolutions/little-kernel,chirayudesai/android_bootable_bootloader_lk,mozilla-b2g/kernel_lk,utilite2/lk,detule/lk-g2-spr,mozilla-b2g/fairphone2_kernel_lk,DooMLoRD/android_bootable_bootloader_lk,mozilla-b2g/fairphone2_kernel_lk,idor/dk50-bootable_bootloader_lk,t2m-foxfone/android_kernel_lk,Foxda-Tech/polaris-bootable-bootloader-lk,efidroid/lk,chirayudesai/android_bootable_bootloader_lk,jsr-d10/android_bootable_bootloader_lk,RonGokhale/android_lk_bootloader,efidroid/lk