Make use of -f option in the instruction of how to run bluetoothd from
the source tree since that doesn't require installing the main.conf
when testing new options.
Without --suppressions=./tools/valgrind.supp in valgrind cmd,
bluetoothd throws following error:
==1237== Syscall param socketcall.bind(my_addr.rc_bdaddr) points to uninitialised byte(s)
==1237== at 0x588B227: bind (syscall-template.S:81)
==1237== by 0x451545: logging_open (log.c:76)
==1237== by 0x451545: __btd_log_init (log.c:314)
==1237== by 0x40B035: main (main.c:610)
==1237== Address 0xfff0003b6 is on thread 1's stack
==1237== in frame #1, created by __btd_log_init (log.c:306)
==1237== Uninitialised value was created by a stack allocation
==1237== at 0x451490: __btd_log_init (log.c:306)
==1237==
==1237== Syscall param socketcall.bind(my_addr.rc_channel) points to uninitialised byte(s)
==1237== at 0x588B227: bind (syscall-template.S:81)
==1237== by 0x451545: logging_open (log.c:76)
==1237== by 0x451545: __btd_log_init (log.c:314)
==1237== by 0x40B035: main (main.c:610)
==1237== Address 0xfff0003b8 is on thread 1's stack
==1237== in frame #1, created by __btd_log_init (log.c:306)
==1237== Uninitialised value was created by a stack allocation
==1237== at 0x451490: __btd_log_init (log.c:306)
