[MIPS][LLDB]Fix TestBreakpointCondition.py for MIPS

[nitesh.jain]

Summary

The self.getArchitecture() returns the architecture based on the value of "-A" flag passed to dotest.py script.
There are many possible values for MIPS to this option (like mips32r2, mips32r6, mips64, mips64r2,.... ).
This patch uses re.match("mips",arch) to check if architecture string starts with mips.

[slthakur]

Committed in r253444 on behalf of @nitesh.jain

packages/Python/lldbsuite/test/functionalities/breakpoint/breakpoint_conditions/TestBreakpointConditions.py

         self.runCmd("breakpoint disable")
 
         self.runCmd("breakpoint set -p Loop")
-        if self.getArchitecture() in ['x86_64', 'i386']:
+        arch = self.getArchitecture()
+        if arch in ['x86_64', 'i386']:
             self.runCmd("breakpoint modify -c ($eax&&i)")
-        elif self.getArchitecture() in ['aarch64']:
+        elif arch in ['aarch64']:
             self.runCmd("breakpoint modify -c ($x1&&i)")
-        elif self.getArchitecture() in ['arm']:
+        elif arch in ['arm']:
             self.runCmd("breakpoint modify -c ($r0&&i)")
+        elif re.match("mips",arch):
+            self.runCmd("breakpoint modify -c ($r2&&i)")
         self.runCmd("run")
 
         self.expect("process status", PROCESS_STOPPED,