update mrl subsets

lm_eval/tasks/mrl/gen/bam_latn.yaml

 include: '_template'
-task: mrl_gen_bam_latn
+task: bam_latn
 dataset_name: bam_latn

lm_eval/tasks/mrl/gen/bel_cyrl.yaml

 include: '_template'
-task: mrl_gen_bel_cyrl
+task: bel_cyrl
 dataset_name: bel_cyrl

lm_eval/tasks/mrl/gen/ben_beng.yaml

 include: '_template'
-task: mrl_gen_ben_beng
+task: ben_beng
 dataset_name: ben_beng

lm_eval/tasks/mrl/gen/ben_latn.yaml

 include: '_template'
-task: mrl_gen_ben_latn
+task: ben_latn
 dataset_name: ben_latn

lm_eval/tasks/mrl/gen/bho_deva.yaml

 include: '_template'
-task: mrl_gen_bho_deva
+task: bho_deva
 dataset_name: bho_deva

lm_eval/tasks/mrl/gen/bos_latn.yaml

 include: '_template'
-task: mrl_gen_bos_latn
+task: bos_latn
 dataset_name: bos_latn

lm_eval/tasks/mrl/gen/bsk_arab.yaml

 include: '_template'
-task: mrl_gen_bsk_arab
+task: bsk_arab
 dataset_name: bsk_arab

lm_eval/tasks/mrl/gen/bul_cyrl.yaml

 include: '_template'
-task: mrl_gen_bul_cyrl
+task: bul_cyrl
 dataset_name: bul_cyrl

lm_eval/tasks/mrl/gen/cat_latn.yaml

 include: '_template'
-task: mrl_gen_cat_latn
+task: cat_latn
 dataset_name: cat_latn

lm_eval/tasks/mrl/gen/ces_latn.yaml

 include: '_template'
-task: mrl_gen_ces_latn
+task: ces_latn
 dataset_name: ces_latn

lm_eval/tasks/mrl/gen/ckb_arab.yaml

 include: '_template'
-task: mrl_gen_ckb_arab
+task: ckb_arab
 dataset_name: ckb_arab

lm_eval/tasks/mrl/gen/ckm_latn.yaml

 include: '_template'
-task: mrl_gen_ckm_latn
+task: ckm_latn
 dataset_name: ckm_latn

lm_eval/tasks/mrl/gen/cmn_hans.yaml

 include: '_template'
-task: mrl_gen_cmn_hans
+task: cmn_hans
 dataset_name: cmn_hans

lm_eval/tasks/mrl/gen/cmn_hant.yaml

 include: '_template'
-task: mrl_gen_cmn_hant
+task: cmn_hant
 dataset_name: cmn_hant

lm_eval/tasks/mrl/gen/deu_latn.yaml

 include: '_template'
-task: mrl_gen_deu_latn
+task: deu_latn
 dataset_name: deu_latn

lm_eval/tasks/mrl/gen/dhd_deva.yaml

 include: '_template'
-task: mrl_gen_dhd_deva
+task: dhd_deva
 dataset_name: dhd_deva

lm_eval/tasks/mrl/gen/ekp_latn.yaml

 include: '_template'
-task: mrl_gen_ekp_latn
+task: ekp_latn
 dataset_name: ekp_latn

lm_eval/tasks/mrl/gen/ell_grek.yaml

 include: '_template'
-task: mrl_gen_ell_grek
+task: ell_grek
 dataset_name: ell_grek

lm_eval/tasks/mrl/gen/eng_latn.yaml

 include: '_template'
-task: mrl_gen_eng_latn
+task: eng_latn
 dataset_name: eng_latn

lm_eval/tasks/mrl/gen/est_latn.yaml

 include: '_template'
-task: mrl_gen_est_latn
+task: est_latn
 dataset_name: est_latn