msm_mmrm: Added debug support for multiple register calls of same client

Added support to allow multiple register of same client so that mmrm
test app can be used after device is booted up.
This will also allow to test multiple concurrencies as well as
throttling feature.

Depends-on: 3630372
Change-Id: I19a2838f536d36db0629d9d64c962aba57c92d28

driver/src/mmrm_debug.c

@@ -8,6 +8,7 @@
 #include "mmrm_debug.h"
 
 int msm_mmrm_debug = MMRM_ERR | MMRM_WARN | MMRM_PRINTK;
+u8 msm_mmrm_allow_multiple_register = 0;
 
 #define MAX_DBG_BUF_SIZE 4096
 
@@ -59,6 +60,7 @@ struct dentry *msm_mmrm_debugfs_init(void)
 
 	/* add other params here */
 	debugfs_create_u32("debug_level", 0644, dir, &msm_mmrm_debug);
+	debugfs_create_u8("allow_multiple_register", 0644, dir, &msm_mmrm_allow_multiple_register);
 
 	d_mpr_h("%s: exiting\n", __func__);
 	return dir;