Update revisions

ibex 1774cbbb Update benchmarks README to better explain how to try different configs
bd248343 Enable the icache in coremark
2de873c9 Add icache_enable function to simple_system_common.h
4f96e544 Fix stale merge commit issue in private CI

deps.json

@@ -1 +1 @@
-{"cores": [{"repository_name": "ibex", "repository_url": "https://github.com/lowRISC/ibex", "repository_branch": "master", "repository_revision": "7049d4d4d76b600946a7ed6082fefcadf7ede146"}, {"repository_name": "Cores-VeeR-EL2", "repository_url": "https://github.com/chipsalliance/Cores-VeeR-EL2", "repository_branch": "main", "repository_revision": "882fd9ff2c47e5fa761f19e05622c0200511080a"}, {"repository_name": "caliptra-rtl", "repository_url": "https://github.com/chipsalliance/caliptra-rtl", "repository_branch": "main", "repository_revision": "bbc9a329abb109abee5befc39419a5336672d036"}]}
+{"cores": [{"repository_name": "ibex", "repository_url": "https://github.com/lowRISC/ibex", "repository_branch": "master", "repository_revision": "1774cbbbe334dff1e762c8308c911a33b3bda515"}, {"repository_name": "Cores-VeeR-EL2", "repository_url": "https://github.com/chipsalliance/Cores-VeeR-EL2", "repository_branch": "main", "repository_revision": "882fd9ff2c47e5fa761f19e05622c0200511080a"}, {"repository_name": "caliptra-rtl", "repository_url": "https://github.com/chipsalliance/caliptra-rtl", "repository_branch": "main", "repository_revision": "bbc9a329abb109abee5befc39419a5336672d036"}]}