gdbclient: use 64-bit suffix for all library symbols
gdbclient: use 64-bit suffix for all library symbols

Correct the solib-search-path for 64-bit to look in /system/lib64
for all libraries including those in subdirectories.

Change-Id: I606a0eae1137a857564facc79306ad83097d9659

xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build