bcm2835: move strict alignment check disable code into the loader
Since the loader wants to muck with alignment related bits of the SCTLR
anyway, it should set both A and U to the desired values (0 and 1
respectively).

*** 95,109 ****
          mov     r4, #1
          lsl     r4, r4, #13
          orr     r3, r3, r4
          mcr     p15, 0, r3, c1, c0, 0
  
-         /* Disable A (disables strict alignment checks) */
-         mrc     p15, 0, r3, c1, c0, 0
-         bic     r3, r3, #2
-         mcr     p15, 0, r3, c1, c0, 0
- 
          /* Enable access to p10 and p11 (privileged mode only) */
          mrc     p15, 0, r0, c1, c0, 2
          orr     r0, #0x00500000
          mcr     p15, 0, r0, c1, c0, 2
  
--- 95,104 ----