Re-add rhel8 roofline binaries (#122)

RHEL8 now being supported until EOS, rebuilding rhel8 bins for rocm7 (previously built for rocm7 rhel9).

Remove roofline-rhel9-rocm7, replace with new roofline-rhel8-rocm7.
Update check for roof bin.
Update any doc mentions of rhel min support version back to rhel8.

---------

Signed-off-by: Carrie Fallows <Carrie.Fallows@amd.com>

projects/rocprofiler-compute/src/utils/utils.py

@@ -1206,19 +1206,13 @@ def detect_roofline(mspec):
             console_error("roofline", msg)
 
     # Must be a valid RHEL machine
-    elif rocm_ver == 6 and (
+    elif (
         rhel_distro == "platform:el8"
         or rhel_distro == "platform:al8"
         or rhel_distro == "platform:el9"
         or rhel_distro == "platform:el10"
     ):
-        # RHEL8 supported up to ROCm6
         distro = "platform:el8"
-    elif rocm_ver == 7 and (
-        rhel_distro == "platform:el9" or rhel_distro == "platform:el10"
-    ):
-        # ROCm7 supports RHEL9 and above
-        distro = "platform:el9"
 
     # Must be a valid SLES machine
     elif (
@@ -1247,7 +1241,6 @@ def mibench(args, mspec):
 
     distro_map = {
         "platform:el8": "rhel8",
-        "platform:el9": "rhel9",
         "15.6": "sles15sp6",
         "22.04": "ubuntu22_04",
     }