arm,kgdb: fix GDB_MAX_REGS no longer used
arm,kgdb: fix GDB_MAX_REGS no longer used

According to commit 22eeef4bb2a7fd225089c0044060ed1fbf091958

    kgdb,arm: Individual register get/set for arm

It's now replaced by DBG_MAX_REG_NUM.

Signed-off-by: Eric Miao <60e376623d7bcedd53f4c51cbb2c060fb40a4887@gmail.com>
Signed-off-by: Jason Wessel <3f19c87103ac4cd0301ffd05a2421b687c7b3c77@windriver.com>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs