Hi all,

second iteration of the previous patch adding the following new
multilibs:

thumb/v8.1-m.main+pacbti/mbranch-protection/nofp
thumb/v8.1-m.main+pacbti+dp/mbranch-protection/soft
thumb/v8.1-m.main+pacbti+dp/mbranch-protection/hard
thumb/v8.1-m.main+pacbti+fp/mbranch-protection/soft
thumb/v8.1-m.main+pacbti+fp/mbranch-protection/hard
thumb/v8.1-m.main+pacbti+mve/mbranch-protection/hard

To trigger the following compiler flags:

-mthumb -march=armv8.1-m.main+pacbti -mbranch-protection=standard -mfloat-abi=soft
-mthumb -march=armv8.1-m.main+pacbti+fp -mbranch-protection=standard -mfloat-abi=softfp
-mthumb -march=armv8.1-m.main+pacbti+fp -mbranch-protection=standard -mfloat-abi=hard
-mthumb -march=armv8.1-m.main+pacbti+fp.dp -mbranch-protection=standard -mfloat-abi=softfp
-mthumb -march=armv8.1-m.main+pacbti+fp.dp -mbranch-protection=standard -mfloat-abi=hard
-mthumb -march=armv8.1-m.main+pacbti+mve -mbranch-protection=standard -mfloat-abi=hard

gcc/ChangeLog:

	* config/arm/t-rmprofile: Add multilib rules for march +pacbti
          and mbranch-protection.