[Arista] Reset switch chip in Aboot for QuicksilverP512 and QuicksilverP (#24470)

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#### Why I did it
Mitigate for the recent issue that under some unknown initial conditions, the 7060X6-64PE-B device could get into reboot loop. It's been identified so far that the reboot loop is related to the some bad switch chip state. While still trying to figure out the initial trigger, we propose this mitigation that break the reboot loop. The same mitigation to 7060X6-64PE is also included in this change.

##### Work item tracking

- Microsoft ADO **(number only)**:

#### How I did it
In boot0 script, if the environment is Aboot and the platform is 7060X6-64PE-B, reset the switch chip.

#### How to verify it
According to our test, this doesn't affect normal booting.

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Author: mssonicbld

files/Aboot/boot0.j2

@@ -901,11 +901,36 @@ regular_install() {
     run_hooks post-install
 }
 
+run_quirks() {
+    # only run in Aboot
+    if $in_aboot && [ -f "/etc/cmdline" ]; then
+        if [ "$aboot_machine" = "arista_7060x6_64pe_b" ]; then
+            info "Resetting switch chip for $aboot_machine"
+            setpci -s 05:00.0 COMMAND=0002
+            devmem 0x80084000 32 0xC
+            sleep 1
+            devmem 0x80084010 32 0x4
+            sleep 1
+            devmem 0x80084010 32 0x8
+        fi
+        if [ "$aboot_machine" = "arista_7060x6_64pe" ]; then
+            info "Resetting switch chip for $aboot_machine"
+            setpci -s 03:00.0 COMMAND=0002
+            devmem 0xa5184000 32 0xC
+            sleep 1
+            devmem 0xa5184010 32 0x4
+            sleep 1
+            devmem 0xa5184010 32 0x8
+        fi
+    fi
+}
+
 secureboot_boot() {
     # boot material is extracted and generated in RAM.
     # SONiC starts as a live OS.
     info "Preparing image for secureboot"
     prepare_image_secureboot
+    run_quirks
     update_next_boot
     run_kexec
 }
@@ -914,6 +939,7 @@ regular_boot() {
     # boot uses the image installed on the flash
     write_regular_configs "$image_path"
     run_hooks pre-kexec
+    run_quirks
     update_next_boot
     run_kexec
 }